what powerful muscle is the prime mover of arm extension ?
Answers
The powerful muscle that is responsible for arm extension is the triceps brachii. The triceps is a three-headed muscle that originates from the scapula and humerus and inserts into the olecranon process of the ulna. It is the largest muscle of the upper arm and is responsible for straightening the arm at the elbow joint.
The triceps brachii is the prime mover of arm extension because it contracts concentrically to produce movement. When the triceps contracts, it pulls on the ulna, which straightens the arm and extends the elbow joint. This movement is essential for performing tasks such as throwing a ball, lifting weights, and pushing objects away from the body.
In addition to its role as the prime mover of arm extension, the triceps also assists in shoulder extension and adduction. Strengthening the triceps through exercises such as tricep dips, pushdowns, and overhead extensions can improve overall upper body strength and function. Additionally, stretching the triceps after exercise can help prevent injury and improve flexibility in the arms.
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Related Questions
Answer True or False.
1. Most plants have three main parts. true
2. A plant's leaves carry water to the roots.
3. Chlorophyll helps plants make food true
4. Roots hold plants in the soil.
5. Stems give off carbon dioxide into the air.
6. Some plants have roots that are branched
7
Root hairs take in oxygen from the air.
Answers
T/F In the human heart, the muscular structure of the ventricles enables them to pump blood a greater distance than atria can
Answers
True. In the human heart, the muscular structure of the ventricles enables them to pump blood a greater distance than the atria can.
True. In the human heart, the muscular structure of the ventricles enables them to pump blood a greater distance than the atria can. The atria are smaller and have less muscular walls compared to the ventricles that are larger and have more muscular walls. The left ventricle is responsible for pumping oxygenated blood to the rest of the body, while the right ventricle pumps deoxygenated blood to the lungs for oxygenation. The ventricles are chambers that pump blood through the circulatory system. They act as pumps and distribute blood throughout the body. The ventricles, unlike the atria, must have thicker, more muscular walls to produce the necessary force for blood to circulate throughout the body. In summary, the muscular structure of the ventricles in the human heart enables them to pump blood a greater distance than the atria can. The ventricles have thicker, more muscular walls, which helps produce the necessary force for blood to circulate throughout the body.
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Two different mechanisms for copying the DNA strands are used because
Answers
The use of both mechanisms ensures the accurate and efficient replication of DNA, which is essential for the transmission of genetic information from one generation to the next.
The two different mechanisms for copying DNA strands, namely semi-conservative and conservative replication, have evolved to ensure the accurate and efficient replication of genetic material during cell division.
Semi-conservative replication involves the separation of the two strands of the DNA double helix, followed by the synthesis of new complementary strands using each original strand as a template. This mechanism ensures that each daughter cell receives one newly synthesized strand and one original strand, thus preserving the genetic information and minimizing errors.
In contrast, conservative replication involves the formation of a new double helix using both original strands as a template, resulting in one daughter cell receiving both newly synthesized strands, while the other receives both original strands. This mechanism is less common and is not as efficient in preserving genetic information, as errors can occur during the segregation of the new and original strands.
The use of two different replication mechanisms also allows for flexibility in responding to different environmental and cellular conditions. For example, semi-conservative replication is the primary mechanism in most cells, but conservative replication can occur under certain conditions, such as during stress or in the presence of certain chemicals.
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What is the study of biological anthropology?
Answers
Biological anthropology is the study of the biology and behavior of homosapien and other hominid ancestors and related non-hominid primates from an evolutionary standpoint.
Biological anthropology is the study of hominid evolution and biological variation. Humans are primates and to understand the biology of our species we need to understand the living and extinct human and non-human primate diversity. It includes the study of physical attributes behavior and ecology. The physical attributes study the muscle and skeletal anatomy of primates. i.e. basic mechanics of bone and tissue biology and also reconstruction from fossil records. The study of ecology includes adaptive variations and the interaction between social and biological sciences. The study of evolution includes the evolution of humans and the evolution of primates from common ancestors. This is studied based on paleontological and archaeological data. And also the study of social environmental and health impacts. It also includes the study of the evolution of pregnancy, birth, and upright walking.
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ILL GIVE U 45 BRAINLY AND MARK BRAINLEST IF ITS CORRECT
Answers
Select the correct answer. After photographing the victim and the evidences, Clifford revisits the crime scene. What will he do when he revisits the scene?
Answers
Answer:
could you please add things to answer? or questions to choose?
Explanation:
If something it could be looking around for anything that they may have missed.
i hope this helps sorry if it doesnt!
1- why dong you usually get sick from the exact same pathogen twice
2-if a pathogen mutated so it had different antigens, would your memory B and memory T cells recognize it?
please help this is due at 3pm
Answers
1: For example, rhinovirus has over 100 different serotypes. Now, the good news is that you can't get ill from the same virus serotype right after getting better, due to the fact that you'll have developed antibodies which help to protect your immune system for a little while.
2:Most children in the United States are now vaccinated against measles virus; before vaccination was widespread, most were naturally exposed to this virus and suffered from an acute, unpleasant, and potentially dangerous viral illness. Whether through vaccination or infection, children exposed to the virus acquire long-term protection from measles. The same is true of many other acute infectious diseases: this state of protection is a consequence of immunological memory.
The basis of immunological memory has been hard to explore experimentally. Although the phenomenon was first recorded by the ancient Greeks and has been exploited routinely in vaccination programs for over 200 years, it is just now becoming clear that memory reflects a persistent population of specialized memory cells that is independent of the continued persistence of the original antigen that induced them. This mechanism of maintaining memory is consistent with the finding that only individuals who were themselves previously exposed to a given infectious agent are immune, and that memory is not dependent on repeated exposure to infection as a result of contacts with other infected individuals. This was established by observations made on remote island populations, where a virus such as measles can cause an epidemic, infecting all people living on the island at that time, after which the virus disappears for many years. On reintroduction from outside the island, the virus does not affect the original population but causes disease in those people born since the first epidemic. This means that immunological memory need not be maintained by repeated exposure to infectious virus
Choose the correct answer :
The opposite figure shows protein
substances in one of the enzymatic
reactions in the digestive system, which
of them represent enzymes ?
a (1) and (2).
(b) (1) and (3).
HCI
Che
(2)
(2) and (3).
(3)
(3) and (4).
BERBAN
Answers
The enzymes are represented by 1 and 2 because they are joining and releasing after the product formation.
Enzymes are the biocatalysts that are responsible for the feasibility of the reaction and to increase the rate of reaction it is done by enzymes because they lower the activation energy which is needed by the substrate to move forward to make products and this is the minimum or threshold energy without which the substrate cant make products and if it is high then to lower
it enzymes help and also enzymes have the property of specificity as they will fix only with their substrate they are supposed to help to and also they work only at optimum ph and temperature because if there is even a slight difference the enzymes will not work properly and will denature or change their conformation so in the given diagram it can be seen that 1 and 2 are
enzymes because firstly 1 is combining with the substrate to form the enzyme substrate complex and in 2 the enzyme is being activated by using the hydrocholric acid and in 4th position also we can see that there are some enzymes which are being released as after the formation of products they are not needed anymore and enzymes are very important for all the cellular function to work properly.
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Determine the amino acid chain that would result from the sequence AUG-CCC-GGA-UUA-UAG.
Answers
Answer:
methionine-proline-glycine-leucine-stop
Explanation:
Using an amino acids chart, you can line up the 3 bases in each section to find the protein chain that corresponds. The stop at the end marks the end of protein synthesis, which ends the sequence.
The compound comprising carboxylic and amino groups is called amino acids. They are vital for the formation of proteins in the cells.
Sequences are read in the three pairs of codons in the form of triplets to form a form an amino acids sequence.
The amino acid sequence that will be formed from the given sequence AUG-CCC-GGA-UUA-UAG will be:
methionine-proline-glycine-leucine-amber
AUG is the start codon which also codes for the amino acid methionine.CCC codes for the amino acid proline and its one-letter code will be P.GGA is glycine and is abbreviated as G.UUA codes for leucine and is represented by U.UAG is the amber or the stop codon which is responsible for terminating the sequence.Therefore, Met-Pro- Gly- Leu- Amber is the amino acid sequence.
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In which direction does heat always flow
Answers
complementary strand of DNA?
DNA Strand 1: AATCGGTAC
Answers
Answer:
TTAGCCATG
Explanation:
Deoxyribonucleic acid (DNA) is a double helix molecule made up of two complementary polynucleotide strands oriented antiparallel to each other. Each nucleotide in both DNA strands is composed of a five-carbon sugar (deoxyribose), a phosphate group and a nitrogenous base. In DNA, there are four types of nitrogenous bases: Thymine, Guanine, Adenine and Cytosine (in RNA, Uracil replace Thymine). According to the base-pairing rules, Adenine always pairs with Thymine through two hydrogen bonds, whereas Guanine always pairs with Cytosine through three hydrogen bonds.
Raw food and food-handling equipment can be decontaminated with ________ to reduce the risk of listeriosis.A) heat, but not radiationB) radiation, but not heatC) radiation and heatD) neither radiation nor heat
Answers
The answer to the question is option C - radiation and heat can be used to decontaminate raw food and food-handling equipment to reduce the risk of listeriosis.
Both radiation and heat are effective methods for killing the bacteria that causes listeriosis. Radiation can be used in the form of gamma rays or electron beams, which penetrate the food or equipment and kill the bacteria. Heat, on the other hand, can be applied through methods such as pasteurization or cooking, which also kill the bacteria.
While both methods can be effective, it is important to note that not all foods or equipment can withstand high levels of radiation or heat. In such cases, alternative methods may need to be used to reduce the risk of listeriosis.
Overall, both radiation and heat can be used to decontaminate raw food and food-handling equipment to reduce the risk of listeriosis. However, it is important to consider the type of food or equipment being treated and to use appropriate methods that are effective while also ensuring the safety and quality of the food.
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What are 2 other differences between plant and animal cells besides cell walls?
Answers
Answer:
. The main structural differences between plant and animal cells are the additional structures found in plant cells. These structures include: chloroplasts, the cell wall, and vacuoles. In animal cells, the mitochondria produces the majority of the cells energy from food.
Pls answer this question. I need it today
Answers
Answer:
1.selective breeding
2.natural selection
3.behavioral adaptations
4.physical adaptations
Explanation:
Please help me
Thank you.
It’ll make my day
Answers
Answer:
Blood sugar regulation is an example of negative feedback, where the body works to increase the stimulus to maintain homeostasis.
Explanation:
Negative feedback loops are when someone goes out of homeostasis and the body must work harder to restore the lost balance to maintain homeostasis. Blood sugar needs to be regulated so the pancreas must release glucagon or insulin to maintain the proper levels.
Your classmate wants to talk to you about goats. It turns out that there is a company that has made genetically engineered goats that make the protein antithrombin in their milk. Normally, antithrombin in only made in the liver, and it goes into the blood and helps prevent blood clots. Some people can’t make antithrombin, so they are prone to large, sometimes deadly clots. The company collects the antithrombin from their goat’s milk and sells it as a drug, so that these patients can safely survive bloody procedures like surgeries and childbirth.
But your classmate is concerned about the goats. "All the cells of these goats have the company’s DNA for making the extra antithrombin. Think about all that extra antithrombin in their bodies- are they going to be able to make blood clots at all? It’s not right to create these sick animals."
You say, "It says that the goats only make the extra antithrombin in their milk."
Your classmate says, "I don’t believe that. How is it even possible to make the goats only make the antithrombin in their milk?"
Using the language of BILD 1, including promoter, enhancer, and transcription factor, explain to your classmate:
- How a piece of DNA could direct the protein to only be made in the milk, and
- What is different about the cells of the milk glands that causes antithrombin to be made there and not in the goat’s other cells?
Answers
The piece of DNA directing the antithrombin production in the milk of genetically engineered goats contains a milk-specific promoter.
Thus, a promoter is a region of DNA initiating the transcription of a gene and its translation into a protein. The milk-specific promoter is active only in the mammary gland cells of the goat and promotes the expression of gene encoding antithrombin only in those cells.
The specificity of the milk-specific promoter is because of presence of enhancer elements that bind to specific transcription factors in the mammary gland cells. However, the production of antithrombin in genetically engineered goats does not affect the ability of the goats to make blood clots.
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Which statement is true about fossils?
O Most life on earth has been preserved as fossils.
O The conditions for forming fossils are rare.
O Any organism can be preserved as a fossil no matter its form.
O The fossil record provides a thorough and complete view of Earth's history.
Answers
Answer: I believe The conditions for forming fossils are rare.
Explanation: hope this helps
Mushrooms are part of which sphere?
Answers
Answer:
biosphere is the answer bro
Do the gradient levels and the sediment load increase or decrease as the
river ages?
Answers
As a river ages, the gradient levels typically decrease, while the sediment load may either increase or decrease depending on various factors.
The gradient of a river refers to the slope or steepness of its channel. Over time, as a river flows and erodes its surroundings, it tends to reach a state of equilibrium, where the slope becomes less steep. This is known as a decrease in gradient levels.
The sediment load of a river refers to the amount of sediment (such as sand, silt, and rocks) carried by the flowing water. It can vary based on factors such as the geology of the area, the climate, and the amount of erosion occurring in the river's watershed.
In some cases, as a river ages and continues to erode its surroundings, the sediment load may increase as more sediment is picked up and transported downstream. However, in other cases, the sediment load may decrease if the river reaches a point of balance where erosion and sedimentation are relatively equal.
Therefore, the change in sediment load as a river ages can vary depending on local conditions and the specific characteristics of the river.
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Explain the difference between the Needham experiment and the Spallanzani experiment in terms of
their methods, results, and conclusions.
Answers
The Needham experiment was replicated in the Spallanzani experiment, albeit with a few significant modifications.
In an experiment, John Needham in England filled a bottle with broth, cooked it to kill any organisms within, and then sealed it. Days later, he revealed that there was life in the broth and said that it had been generated spontaneously, concluding that this DOES happen. In actuality, his experiment was defective and caused the flasks to become contaminated.By extending the boiling time and securing the flasks from air and germs, Spallanzani altered Needham's experiment. As a result of his failure to spot any growths inside the flasks, he came to the conclusion that spontaneous generation was not feasible.By adding broth to two different bottles, heating the broth in both bottles, and then closing one bottle while leaving the other open, Spallanzani conducted his own experiment. The unsealed bottle was swarming with tiny living things a few days later, which he could see more clearly with the recently created microscope. No evidence of life could be seen in the sealed bottle. This effectively eliminated the possibility of spontaneous generation. Because oxygen was believed to be required for spontaneous generation, experts of the day noticed that Spallanzani had deprived the sealed bottle of air. Because of this, even if his experiment was successful, his arguments were refuted effectively.Learn more about the Needham experiment with the help of the given link:
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One liter of water equals one ____.
A. Hectogram
B. Decigram
C. Kilogram
D. Gram
Answers
Answer:
Kilogram
Explanation:
1 liter of water = 1 kilogram of water
the diagram shows a large food molecule changing into smaller molecules?
what's process X?
Answers
Answer: Process X is digestion.
Explanation: Digestion breaks down food into smaller pieces so that it can process through the body.
The process of large food changing into smaller molecules by the process X, that process is called Digestion. In depth if the process is known to be digestion, then the process X by which the food is broken down is called hydrolysis.
Hydrolysis is a chemical reaction that breaks down large molecules into smaller ones through the addition of water molecules.
In digestion, hydrolysis is used to break down complex macromolecules such as carbohydrates, proteins, and lipids into simpler molecules that can be absorbed and utilized by the body.
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1.The digestive system relies on the______system to deliver the nutrients to the entire body of the organism.
2.The respiratory system provides oxygen to the ______system
3. Carbon dioxide from cell is delivered from the circulatory system back to the______system so it can exist the body
4. The circulatory system carries the waste from throughout the organism to the _____system, which takes care of excreting the waste from the organism:
5. The circulatory system and the _____system interact to deliver oxygen to and to remove carbon dioxide from cells.
Answers
Answer:
1_circulatory
2_circulatory
3_respiratory
4_excratory
5_respiratory
Hardening of the arteries results in _______ and deposition of plaques in the walls of the arteries results in
Answers
Hardening of the arteries results in arteriosclerosis and deposition of plaques in the walls of the arteries results in atherosclerosis
This condition occurs due to the accumulation of fatty deposits, cholesterol, cellular waste products, calcium, and other substances in the inner lining of the arteries.
As a result, the arteries lose their elasticity and become hardened.
Deposition of plaques in the walls of the arteries, which is a characteristic feature of atherosclerosis, leads to further complications. These plaques are composed of cholesterol, fat, calcium, cellular debris, and other substances. Over time, they can grow in size and obstruct the normal flow of blood through the affected artery.
This can lead to reduced blood supply to vital organs and tissues, causing various health problems depending on the affected arteries. If a plaque ruptures, it can trigger the formation of blood clots, which can completely block the artery and result in a heart attack or stroke.
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A small oceanic plate borders the North American Plate along northern California, Oregon, and Washington. As a result of
this plate boundary, the Pacific Northwest contains a volcanic mountain range known as the Cascades.
Based on the volcanic mountain range shown on the map, describe the motion of the plates and identify the type of plate
boundary in this region.
Answers
The motion of the plates is towards each other and the type of plate boundary in this region is referred to as convergent boundary.
What is Convergent boundary?This is referred to as a location or area where two tectonic plates move towards each other and it is based on different types of factors and the materials which are involved in the process.
This type of boundary is common along northern California, Oregon, and Washington and it contains a volcanic mountain range known as the cascades which depicts the collision of the plates which is therefore the reason why it was chosen as the correct choice.
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A student made the claim that consumers are dependent on organisms that convert solar energy into chemical energy during photosynthesis and that organisms that perform photosynthesis are dependent on organisms that undergo cellular respiration. The student created the following model to illustrate these relationships.
Answers
Process X results in the production of glucose and oxygen. Cellular respiration releases the carbon dioxide that crops need for photosynthesis, generating water and carbon dioxide as of process Y.
Why is photosynthesis important? What is it?The main purpose for photosynthesis is to transform sunlight into chemical energy, which is then stored for later use. It method gives a majority of the electricity for the planet's living organisms.
How is photosynthesis carried out?Plants absorb water and carbon dioxide from of the air and soil during photosynthesis. Water is oxidized, or loses electrons, within the plant, whereas co2 is reduced. Water is converted into oxygen and carbon dioxide to glucose as a result.
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The Austrian monk and scientist Gregor ___________
studied the traits of pea plants. He could see that pea plant traits were passed from parents to offspring in a process called _______________
Answers
Answer: The Austrian monk and scientist Gregor Mendel studied the traits of pea plants. He could see that pea plant traits were passed from parents to offspring in a process called inheritance or heredity.
Explanation: Gregor Mendel, an Austrian monk and scientist, is known as the father of modern genetics. In the mid-1800s, Mendel conducted a series of experiments using pea plants to study the patterns of inheritance of traits.
Mendel observed that pea plants displayed distinct traits, such as flower color, seed shape, and plant height. Through his experiments, he discovered that these traits were passed from parents to offspring in a predictable manner.
Mendel coined the term "inheritance" or "heredity" to describe this process. He found that the traits of pea plants were determined by discrete units, which we now refer to as genes. These genes are passed down from parents to their offspring.
By carefully cross-breeding pea plants and observing the patterns of trait inheritance, Mendel formulated his laws of inheritance, which laid the foundation for our understanding of genetics.
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Discuss the major brain structures involved in vision analysis/comprehension. Explain for each major structure what problems in vision and/or analysis/comprehension would arise if they were damaged.
Answers
Vision analysis and comprehension involve several key brain structures. The retina captures visual information and converts it into neural signals, while the optic nerves transmit these signals to the brain.
The lateral geniculate nucleus (LGN) in the thalamus relays the information to the primary visual cortex (V1) in the occipital lobe. V1 processes basic visual features such as edges, motion, and orientation.
Visual association areas, including the posterior parietal cortex and inferotemporal cortex, analyze more complex visual information, such as object and facial recognition, and spatial awareness.
The dorsal and ventral pathways, which branch out from these areas, contribute to processing object location and identity, respectively. The frontal and parietal lobes are involved in higher-order cognitive functions, including attention, decision-making, and memory, which support visual analysis and comprehension.
Damage to these brain structures can lead to various vision and comprehension problems. For example, damage to the retina or optic nerves can result in vision loss or reduced acuity.
Damage to V1 can cause visual agnosia or visual field deficits. Lesions in visual association areas may lead to prosopagnosia or difficulties in object recognition and spatial perception. Injuries affecting the dorsal and ventral pathways can impair depth perception, object localization, and object identification.
Damage to the frontal and parietal lobes can result in deficits in attention, working memory, and executive functions, affecting visual attention and the ability to make sense of visual information. Overall, damage to any of these major brain structures can disrupt different aspects of vision analysis and comprehension, highlighting the intricate nature of visual processing in the brain.
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65 POINTS HURRY PLEASE
Cellular Respiration
It’s time to complete your Lab Report. Save the lab to your computer with the correct unit number, lab name, and your name at the end of the file name (e.g., U3_ Lab_CellularRespiration_Alice_Jones.doc).
Introduction
What was the purpose of the experiment?
Type your answer here:
How do indicators help to observe things that are too small to see?
Type your answer here:
Write a hypothesis based on observations and scientific principles.
Type your answer here:
Experimental Methods
What tools and/or materials did you use to collect your data?
Type your answer here:
Describe the procedure that you followed to conduct your experiment.
Type your answer here:
Data and Observations
Record your observations.
Type your answer here:
Conclusions
What conclusions can you draw about whether or not yeast and plant cells produce carbon dioxide during cellular respiration? Write an evidence-based claim.
Type your answer here:
Make a model that shows how glucose is rearranged through cellular respiration to form new molecules. Include labels. Identify the number of each type of atom before and after the reaction takes place. Describe how energy is released in cellular respiration.
Type your answer here:
Answers
Answer:
Here is the first answer
Key Takeaways: Experiments
An experiment is a procedure designed to test a hypothesis as part of the scientific method.
The two key variables in any experiment are the independent and dependent variables.
Three key types of experiments are controlled experiments, field experiments, and natural experiments.
Microscope is the second answer
third answer is this Responsible Science is a comprehensive review of factors that influence the integrity of the research process. Volume I examines reports on the incidence of misconduct in science and reviews institutional and governmental efforts to handle cases of misconduct.
The result of a two-year study by a panel of experts convened by the National Academy of Sciences, this book critically analyzes the impact of today's research environment on the traditional checks and balances that foster integrity in science.
Responsible Science is a provocative examination of the role of educational efforts; research guidelines; and the contributions of individual scientists, mentors, and institutional officials in encouraging responsible research practices.
4th is this Case Studies, Checklists, Interviews, Observation sometimes, and Surveys or Questionnaires
5th is this When conducting an experiment, it is important to follow the seven basic steps of the scientific method: 1 Ask a question or find a research problem to solve. Determine what you will test to answer this question. Review current knowledge on the subject. Design an experiment.
And is all I could find for u
Hope this helps
Answer:
What was the purpose of the experiment?
The purpose of this experiment was to harvest the chemical energy stored in glucose.
How do indicators help to observe things that are too small to see?
Indicators helps see the end point of the valution during a titration by causing color change.
Write a hypothesis based on observations and scientific principles.
An example based on observations and scientific principles would be deaf children. Deaf children whose parents are deaf will accquire language faster than deaf children whose parents aren't deaf. It specifies the direction of hypothesis because a group is faster than the other.
Explanation:
Hello can someone please please me choose the right option
Answers
Answer:
Chimpanzees are the closest living relatives to humans. We share about 98.6% of our DNA with them. So your answer would be D. The closest living relatives to humans.
Answer:
The closest living relatives to humans