Answer:
Germ layers - Groups of cells that form 3 distinct regions of the embryo & give rise to specialized cells and organs.
Ectoderm - Epidermis and nervous system
Mesoderm - Heart, kidney, gonads, bones and muscle.
Endoderm - Lungs and digestive system.
Explanation:
Cells in each germ layer differentiate into tissues and embryonic organs. The ectoderm gives rise to the nervous system and the epidermis, among other tissues. The mesoderm gives rise to the muscle cells and connective tissue in the body. The endoderm gives rise to the gut and many internal organs.
what are the traits that distinguish humans from all other beings that exist?
this are charateristic
Explanation:
this is because human has different featuresthan other beings like monkeys
Looking at the atomic model, which particle is shown in yellow?
Question 4 options:
nucleus
protons
electrons
neutrons
Answer:
electrons :))
Explanation:
i took the test lol
If RR plants are crossed with rr plants, would the offspring have round or wrinkled peas? Why?
discuss the chemical structure; (b) describe how small component parts are assembled to make larger macromolecules using condensation reactions, and (c) describe how large molecules are broken down into their component parts via hydrolysis.
(a) Chemical structure refers to the arrangement and bonding of atoms in a molecule. It determines the molecule's physical and chemical properties.
It is represented by molecular formulas, structural formulas, or diagrams like ball-and-stick or space-filling models. (b) Small component parts are joined to form larger macromolecules through condensation reactions. In this process, two molecules combine, releasing a small molecule like water or alcohol as a byproduct. The small components, called monomers, link together by forming covalent bonds. This repetitive bonding creates polymers with specific structures and properties, such as proteins, nucleic acids, and carbohydrates. (c) Large molecules can be broken down into their component parts through hydrolysis. Hydrolysis involves the addition of water molecules to break the covalent bonds in the macromolecule. This reaction reverses the process of condensation. By adding water, the polymer is cleaved into smaller units, or monomers, which can be utilized for energy or building new molecules. Hydrolysis is a vital process in digestion, where enzymes break down complex molecules into simpler forms for absorption and use in the body.
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scientists who study taxonomy are called(1 point) responses paleontologists. paleontologists. systematists. systematists. botanists. botanists. zoologists.
Answer:
Systematists
Explanation:
The pH scale is a mathematical indicator of the Select one: A. concentration of H+ present in a solution. B. ability to dissolve in water. C. total amount of all ions in a solution. D. ability of a solution to buffer. E. concentration of OH- present in a solution.
Answer: Correct answer: A. concentration of H+ present in a solution.
Explanation:
Because that is what pH is defined as. The pH is the negative logarithm of the hydrogen ion concentration. You can also have pOH Or pF for fluoride ion concentration or pNO3. It is simply the negative log of whatever ion you are talking about. As far as I know, the ones I’ve mentioned are never used, but the term could be used for any ion.
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All of the following are found in a DNA molecule except
Answer:
But in a molecule of DNA you can find four nitrogen-containing nucleobases: cytosine, guanine, adenine, and thymine. It also contains a sugar called deoxyribose and a phosphate group.
Explanation:
Human (and fly) males are said to be hemizygous for a(n) ______ trait. Responses recessive recessive incomplete dominant incomplete dominant sex-linked.
Human (and fly) males are said to be hemizygous for a(n) sex-linked. trait. Responses recessive recessive incomplete dominant incomplete dominant sex-linked. Human (and fly) males are hemizygous \.
for sex-linked traits. This is because males have one X chromosome and one Y chromosome, while females have two X chromosomes. Sex-linked traits are those that are located on the sex chromosomes (X or Y) and are inherited in a sex-dependent manner. In males, who have only one X chromosome, any gene on the X chromosome, whether it is dominant or recessive, will be expressed since there is no corresponding gene on the Y chromosome to mask its expression. This makes males hemizygous for sex-linked traits, as they have only one copy of the gene on the X chromosome.
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What unit of time on Earth is based on the rotation of the Earth?
A.day
B.hour
C.month
D.year
Answer:
year
Explanation: Every year the earth rotates one time so that is right.
how do micro organisms contribute to carbon dioxide ratio to oxygen in the soil
Explanation
The terrestrial carbon cycle with the major processes mediated by soil microorganisms adapted from Prosser125. Microbial necromass and metabolites are the precursors for stable soil organic matter while extracellular microbial carbon may also influence the stability of soil organic carbon SOC.
a helium atom contains 2 protons, 2 electrons, and 2 neutrons. Which would be considered an Isotope of heliuma. an atom with 2 protons , 1 electron and 2 neutronsb.all of thesec. an atom with 2 protons 2 electrons 1 neutron d. an atom with 1 proton 2 electrons 2 neutrons
Isotopes are different forms from the same element, they have the same number of protons but differ in the number of neutrons in their nuclei, this makes them have different atomic mass, altough their chemical properties remain the same.
Helium contains 2 protons, 2 electrons, and 2 neutrons.
Of the listed options, only c. has a different number of neutrons than the described atom. So this option represents an Isotope of Helium.
How do structures in living organisms different from structures of nonliving things such as a construction cranes, buildings, ships, airplanes, or bridges?
Answer:
living organisms are made up of organic matter. we as humans are made uo of nutruiens and chemicals and water. whole those structures like bridges for example are made from hard matterial made by mankind.
Explanation:
please answer the question
Answer:
two of the DNA fingerprint are same when they contain the same nitrogenous bases in the same location of the DNA.
Explanation:
The DNA fingerprint is one of the most important tool as a forensic medicine expert to to form such condition and rule it out to come to a diagnosis.
DNA fingerprint uses the base pair which a different for all the other human beings. Due to this from the blood or other cells of the body there can be an evidence of the person and this is usually done on a comparative basis.
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Which of the following describes the biological school of animal welfare?
A. Experiencing fear and distress
B. How healthy the animal is and how it grows and reproduces
C. Environmental conditions
D. Express natural behaviors
Answer: B. How healthy the animal is and how it grows and reproduces
Explanation: It focuses on the physical wellbeing of an animal, also includes its reproduction, growth rate, and more.
Which of the following would NOT be considered Lamarckian ideas about evolution?
Answer:
noelos
Explanation:
Which of the following best describes the way plants with rhizomes can reproduce?
A. by both sexual and asexual reproduction
B. by sexual reproduction only
C. by sexual reproduction and grafting
D. by cloning only
Answer:
c
Explanation:
when you graft you are a usally combing two plants to make a differt species
when measuring the blood pressure, the cuff is deflated until two consecutive beats are heard through the stethoscope. This measurement reflects
Answer: Systolic pressure.
Explanation:
Every time the heart beats, it pumps blood into the arteries, which are vessels through which blood circulates from your heart to your tissues with the oxygen and nutrients they need. Blood pressure is the force of the blood pushing against the walls of the arteries, and is highest when the heart beats, pumping blood, which is measured as systolic pressure (i.e., when the heart contracts). On the other hand, diastolic blood pressure refers to the pressure of blood in the artery when the heart relaxes between beats (i.e., when the heart relaxes). Since there are two types of pressures, blood pressure readings are given in two numbers, with the top number being the systolic pressure and the bottom number being the diastolic pressure.
For example, if the systolic pressure measured in a person is 125 millimeters of mercury (mm Hg) and the diastolic pressure is 85 mm Hg, the blood pressure is recorded as 125/85.
So, the systolic blood pressure is registered with the stethoscope when the cuff is deflated. When two heartbeats are heard, the pressure gauge reading is recorded. When the heartbeat ceases, the cuff pressure is released and the diastolic pressure is measured at this time.
What is the role of the nervous system in the body?
A.To protect other organs and tissues
B.To send messages using blood cells
C.To gather and respond to information
D. To transport oxygen and carbon dioxide
Which one of the causes of
biodiversity loss, effects all of the
Earth at once, where the others only
effect parts of the Earth at once.
Overharvesting
Habitat alteration
Climate change
Invasive species
Answer:
overharvesting
Explanation:
this is the outcome of cut down trees for personal and industrial use,which as a result causes less trees and homes for birds and gradual decrease of oxygen which the trees produce....hope this helps
Review the table detailing the mass of Jupiter’s moons and their distance from the planet.
A 3 column table with 4 rows. The first column is labeled Moon with entries Io, Europa, Ganymede, Callisto. The second column is labeled mas in x 10 Superscript 19 Baseline kilograms with entries, 8.932, 4.8, 14.819, 10.759. The last column is labeled Distance from Jupiter in meters with entries, 421700, 671034, 1070412, 1882709.
Which of Jupiter’s moons has the greatest gravitational force with Jupiter?
Io
Europa
Ganymede
Callisto
The Jupitar moon that would have the greatest gravitational force with Jupiter is Ganymede. Option C
What is the gravitational force?We know that the gravitational force has to do with the force that is exerted by one object on the other owing to the fact that they are all with the gravitational field of the universe. We must know that the universe is a great gravitational field.
The gravitational force that acts on objects in the universe is an attractive force. Hence we know that masses that are in the universe are able to be attracted to each other by reason of the force of gravity that is operating in the universe.
We know that the magnitude of the gravitational force depends on the mass of the objects as well as on the magnitude of the distances that separates the objects in the universe.
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Answer: c Ganymede
Explanation:
Provide a detailed Information regarding Supply Chain Planning of
Harley-Davidson (Motor Company)
Harley-Davidson's supply chain planning allows the company to manage the flow of components and materials from suppliers to its own facilities. This process includes the review and management of agreements, inventory, and production timetables.
By understanding the requirements of suppliers, Harley-Davidson can identify opportunities for improved operations, while controlling the costs of materials and services. Through the use of IT, the company has the ability to track the progress and performance of its materials and adjust processes accordingly. In addition, the use of supply chain planning allows Harley-Davidson to monitor customer feedback on the quality of their product.
This feedback helps the company to hone their supply chain and improve their offerings. In summary, Harley-Davidson's supply chain planning provides a strong foundation for the company to meet customer expectations and ensure its supply chain operates efficiently.
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HELP! I NEED IT SOON! ILL GIVE BRAINLIEST
Answer: A: People with different goals can make contributions to scientific knowledge.
Schwann and Virchow both had different goals for what they were trying to discover, but both ended up adding to the same theory.
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Which bone-associated structure is continuous with the capsule of the joint, adding strength and helping to stabilize the joint?
The ligaments are the bone-associated structure that is continuous with the capsule of the joint, adding strength, and helping to stabilize the joint.
In the skeletal system, bones serve to provide support and stability to the body, protect internal organs, and work with muscles to facilitate movement. In addition to these functions, bones also contribute to the structure of joints and their stability. Capsule of the joint is a thin fibrous material that surrounds the bones of a joint.
This structure is responsible for keeping synovial fluid inside the joint, which lubricates the joint and reduces friction between the bones. The capsule also provides some degree of stability to the joint.
One of the structures associated with bones that is continuous with the capsule of the joint, adding strength and helping to stabilize the joint is ligaments.
Ligaments are fibrous connective tissues that connect bone to bone.
They are strong and elastic, and they can withstand a lot of tension and stretching. Ligaments can be found at the ends of bones, where they attach to other bones to form joints.
They help to hold the bones in place, and they prevent the bones from dislocating or moving too far out of their normal position.
In conclusion, the ligaments are the bone-associated structure that is continuous with the capsule of the joint, adding strength, and helping to stabilize the joint.
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Explain the negative impact of deforestation, and also 2 ways Humans have made efforts to protect our planet's forestland in a short paragraph (4 or more sentences).
Answer:
See below.
Explanation:
Deforestation, the process of cutting down and clearing forests for other land uses, has numerous negative impacts on the environment. It contributes to climate change by releasing large amounts of carbon dioxide into the atmosphere, as trees absorb carbon dioxide and produce oxygen. Deforestation also leads to soil erosion, loss of biodiversity, and increased frequency and severity of natural disasters like floods and landslides. Additionally, deforestation destroys the habitats of countless species, which can lead to their extinction.
Fortunately, humans have taken steps to protect our planet's forestland. One way is through reforestation efforts, which involve planting new trees in areas where forests have been cleared. Another way is through conservation, which involves protecting existing forests and preventing further deforestation. Governments and environmental organizations have established protected areas and implemented policies and regulations to limit deforestation and promote sustainable land use practices. Additionally, there is a growing movement to promote the use of sustainable products, like recycled paper and wood products from sustainably managed forests, which can help reduce the demand for new products that contribute to deforestation.
please help me answer the first question.
Answer:
Include a Hypothesis
Explanation:
Here is the answer for u
which conditions must be met before the cell can begin dna replication?
Select all that apply.
A) Cyclin D1 levels must be high
B) Retinoblastoma protein (pRB) must be unphosphorylated.
C) Cyclin D1 must be bound to cyclin dependent kinase (Cdk4).
D) The transcription factor, E2F, must be bound to DNA.
E) Retinoblastoma protein (pRB) must be bound to transcription factor E2F.
The correct options are:
B) Retinoblastoma protein (pRB) must be unphosphorylated.
D) The transcription factor, E2F, must be bound to DNA.
Before the cell can begin DNA replication, the retinoblastoma protein (pRB) must be in its unphosphorylated form. This allows pRB to bind to the transcription factor E2F, preventing E2F from activating genes required for DNA replication. Therefore, the correct options are B) Retinoblastoma protein (pRB) must be unphosphorylated and D) The transcription factor, E2F, must be bound to DNA. Learn more about retinoblastoma here: https://brainly.com/question/14031221 #SPJ11
answer and i'll mark u brainlist in no time :')
Answer:
A
Explanation:
The pancreas has dual roles - it is an organ of the digestive system and of the endocrine system. Food does not pass through this organs but is essential or digestion.
Accessory organs of digestion are organs that secrete substances needed for the chemical digestion of food but through which food does not actually pass as it is digested. Besides the liver, the major accessory organs of digestion are the gallbladder and pancreas.
how do genes determine what traits an organism has
Answer: An organism has many different genes, and so can produce many different proteins. These proteins have functions that affect the organism’s traits.
Explanation:
Answer:
Genes determine what traits an organism has by controlling the production of proteins that carry out various functions in the body. The specific combination of alleles an organism inherits determines which versions of these proteins are produced, and ultimately, which traits are expressed.
Explanation:
Genes are segments of DNA that contain the instructions for building proteins. The sequence of nucleotides in a gene determines the sequence of amino acids in the protein it codes for. This sequence, in turn, determines the structure and function of the protein.
Different versions of a gene, called alleles, can exist in a population, and they can result in different traits being expressed. An organism inherits one allele of each gene from each of its parents. The combination of alleles determines the traits that will be expressed.
Some traits are controlled by a single gene, while others are influenced by multiple genes and the environment. The interaction between genes and the environment can result in a wide range of variations in traits, even among individuals with the same genetic makeup.
Overall, genes play a central role in determining an organism's traits by controlling the production of proteins that carry out various functions in the body.
A brown cat (BB) has a litter of kittens with a white cat (bb). What percent of their kittens will be brown?
a)10%
b)25%
c)75%
d)100%
which center is located in the pons? select one: a. pacemaker neuron center b. expiratory center c. pontine respirator group (prg) d. inspiratory center
The Pontine Respirator Group (PRG) is located in the pons, a region of the brainstem that is involved in many vital functions, including respiration.
The PRG is a collection of neurons and brain cells that control the rhythm of breathing. It consists of the inspiratory center, which is responsible for initiating inhalation and the expiratory center, which is responsible for initiating exhalation.
The PRG also contains a pacemaker neuron center, which helps to maintain the regular rhythm of breathing. The PRG is an important part of the respiratory system, as it helps to ensure that the body takes in enough oxygen and expels enough carbon dioxide. Without the PRG, breathing would be irregular and inefficient, leading to poor health.
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