Example: An everyday activity is running.
Explanation: When you run, your respiratory system changes your breathing speed rapidly and drastically. Your lungs work harder to store oxygen you need to keep running with your muscles. With the respiratory system supporting your muscles, this allows the muscular system, which in this case are your leg muscles, to effectively run smoothly. (Sorry if this may not be the best answer, but this was what I first thought of. I hope it helped though!)
Match the following.
1. How common the gene is in the population
2. All of the genes present in a specific population
3. The ancestral history of an individual; a chart showing the history of a trait in the family
4. The study of a hereditary trait in a large population
i. pedigree
ii. gene pool
iii. population genetics
iv. gene frequency
The match is as follows:1. How common the gene is in the population - gene frequency.2. All of the genes present in a specific population - gene pool.3. The ancestral history of an individual; a chart showing the history of a trait in the family - pedigree.4. The study of a hereditary trait in a large population - population genetics.
Gene frequency (iv) is a proportion of how frequently the allele for a particular gene appears in a population. It represents the number of times a particular allele appears in a gene pool and it is used to monitor the changes in gene expression with time.Gene pool (ii) is the sum of all the genes present in a population. It represents the variety of genes in a population and it can change as a result of migration, gene flow, genetic drift, or mutation.
Pedigree (i) is the ancestral history of an individual, which may be displayed in a chart. A pedigree may be utilized to investigate the inheritance of a specific trait in a family over several generations.Population genetics (iii) is the study of the hereditary traits of a population. It covers the genetic and ecological components of a population, as well as the impacts of environmental and genetic changes on the population.
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Which
macromolecule is fiber and where in plants is it found?
Answer: Cellulose is the single most common biochemical compound in living things. It forms the cell walls of plants and certain algae. Like most other animals, humans cannot digest cellulose, but it makes up most of the crucial dietary fiber in the human diet.
immune system’s 3rd line of defense, ___________________ mount a cellular response which is antigen specific
Answer:
Specific resistance
Explanation:
What processes maintain a steady state “resting” membrane potential
Answer: Sodium-Potassium pumps (NaK Pumps)
Explanation:
So you only need to consider two things:
Are these ions mainly found on the inside or outside of the cell?
What are the ions' charges?
The location of the ions: Sodium is mostly found outside of the cell.
Potassium is mostly found inside of cells.
Sodium and potassium both have a positive charge.
So, consider this: what does sodium want to do? It wants to RUSH INTO the cell for two reasons: there is more on the outside, and the inside of the cell is negatively charged, which attracts it.
Potassium wishes to do the direct opposite. It is mostly inside the cell and wants to get out. Also, because opposite charges repel each other, potassium wishes to leave the cell.
Okay, so sodium enters the cell and potassium exits. What is it that keeps them where they are?
The sodium-potassium pumps. They take out sodium to keep it outside the cell and bring potassium back in. This is what it means to "maintain a steady state resting membrane potential."
It's three sodium ions leaving and two potassium ions entering per "pump."
caitlin has blue eyes. her dad has blue eyes, and her mom has brown eyes. what does this indicate about caitlin’s parents’ alleles?
Caitlin's blue eye color indicates that she has two copies of the recessive allele for eye color, one from each parent.
Eye color is determined by multiple genes, and the brown eye color allele is dominant over the blue eye color allele.
If Caitlin's father has blue eyes, it means that he also has two copies of the recessive allele for blue eye color. This means that Caitlin's father must have received one blue allele from each parent.
If Caitlin's mother has brown eyes, it means that she has at least one dominant brown allele and one recessive blue allele. She could have two brown alleles, or one brown and one blue allele.
Based on this information, it can be deduced that Caitlin's parents both carry the recessive blue allele, as they both have blue eyes, even though one of them also has a dominant brown allele. This is an example of incomplete dominance, where the phenotype (observable trait) is a mix of the dominant and recessive alleles.
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Plant ________ study plant relationships, identify and classify plants into groups based on genetic similarity, and name plants according to these groups.
Find the missing links, respectively
Answer:
C, CO2 --> CO2
Explanation:
Plants --> Oxygen (O2) --> Animals --> Carbon-dioxide (CO2) --> Plants
Plants absorb carbon dioxide which is used in the process of photosynthesis to make food. The plants respire (breathe out/exhale) oxygen, which is taken in by animals such as humans (us), and then use it for respiring or breathing. We breathe out carbon dioxide, which is then used to continue the cycle.
This is the reason why cutting down plants and trees are harmful for the environment; it reduces the number of trees and plants that can reduce the CO2 in our atmosphere.
all primates have a foreshortened snout and a relatively flat face with eyes in the front, allowing for ____________ vision, or the ability of the eyes to focus on objects from different angles.
All primates share the characteristic of having a foreshortened snout and a relatively flat face with eyes in the front. This facial structure allows for binocular vision, which means that the eyes are positioned to focus on objects from different angles. With binocular vision, the two eyes work together to create a single image with depth perception, which is critical for activities like hunting, navigating through a forest, and interacting with other primates.
In addition to binocular vision, primates also have other adaptations that help them focus on objects from different angles. For example, some species have eyes that can rotate within their sockets to track moving objects, while others have eyes that are set wider apart to provide a wider field of vision.
Overall, the ability to focus on objects from different angles is a key adaptation that has allowed primates to thrive in a variety of environments and engage in complex social behaviors.
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Why is mRNA made from DNA? Hint: What can it do that DNA cannot do?
Answer:
Once RNA polymerase is done, the mRNA transcript has to be processed before it can make its journey out of the nucleus and to the ribosome.
Explanation:
Answer: double compared to single
Explanation: NA is made up of deoxyribose sugar while mRNA is made up of ribose sugar. DNA is present in the nucleus while mRNA diffuses into the cytoplasm after synthesis. DNA is double-stranded while mRNA is single-stranded.
few natural rabbit predators exist in australia. why would the introduction of a non-native predator species only add further problems?
feral cats and foxes are natural predators of rabbits in australia. if we introduce non native predators, it may cause ecological imbalance.
introduction of non native predators of rabbit includes many protocol of import. it increase the cost of rabbit control. introduced predators may cause new problems such as spreading new disease to the native wild animals. it also be a predator for some other species in australia. other than that it severely affects the ecological balance in the location. controle of such introduced predator become additional problem for the government. we cannot predict the behaviour of the non native predators in australia.
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which type of tissue covers the body surface and lines organs and cavities?
Answer:
The type of tissue that covers the body surface, lines organs and cavities is called epithelial tissue or epithelium. It forms the covering on all internal and external surfaces of your body, lines body cavities and hollow organs, and is the major tissue in glands.
Please HELP I am TIMED!!!!
Which of the following nutrients in fertilizer causes abnormalities in muscle contractions?
zinc
potassium
nitrogen
copper
Answer:
potassium I think I am not sure
1. Sodium is a silvery solid that reacts violently with water and chlorine. When they
combine to form the compound sodium chloride known as salt, there is a
fundamental change in the properties. Salt is often added to our food when
cooking and it is safe to eat. Which of the following statements supports the idea
presented?
Answer: Options are not given, here are the options.
. True to all compounds, they no longer have the properties of the elements
that makes them up.
B. True to some compounds, it maintains the properties of the elements that
makes them up.
C. True in all elements, it maintains its properties even after it combines with
other elements.
D. True to all elements, they have the properties after they are combined.
The correct option is D.
True to all elements, they have the properties after they are combined.
Explanation:
Elements are pure substances which can not be divide by any form of chemical means.
True to all elements, they have the properties after they are ccombine because elements contain atoms and atoms is the smallest indivisible units which retain chemical properties because chemical bonds are formed between the atoms of elements.
secretion of cell products such as milk proteins and mucus from glandular cells is accomplished via.....
The secretion of cell products such as milk proteins and mucus from glandular cells is accomplished via exocytosis. Exocytosis is a process by which cells release materials from intracellular vesicles to the extracellular environment.
In the case of glandular cells, these vesicles contain the proteins or other products that the cell produces, and they are transported to the plasma membrane for secretion. The process of exocytosis involves several steps.
First, the vesicle carrying the product fuses with the plasma membrane, allowing the contents of the vesicle to be released into the extracellular space. This fusion is mediated by a series of proteins and regulatory factors that interact with the vesicle membrane and the plasma membrane.
Once the vesicle has fused with the plasma membrane, the contents of the vesicle are released into the extracellular space. In glandular cells, this often involves the release of secretory products such as milk proteins or mucus, which are then transported to other parts of the body for use or elimination.
Exocytosis is an important process in many different types of cells and tissues, including glandular cells, nerve cells, and immune cells. It allows cells to release materials that are essential for normal bodily functions, such as hormones, neurotransmitters, and enzymes.
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How an exoskeleton enables invertebrates to live in a variety of habitat
NEED HELP WITH THIS QUESTION PLEASE I NEED HELP
A hereditary disorder, also known as a genetic disorder or genetic disease, is a condition that is caused by abnormalities or mutations in genes inherited from parents.
The down syndrome involves the presence of an additional copy of genes located on chromosome 21 rather than specific mutations in individual genes.
In Fragile X syndrome, the FMR1 gene on the X chromosome undergoes an expansion of CGG repeats, which leads to the inactivation or reduced production of the FMR1 protein. This mutation affects protein synthesis and neuronal development, resulting in the cognitive impairments and developmental delays observed in Fragile X syndrome. Please note that the specific names for Gene 2 and Gene 3 are not applicable in this context since Fragile X syndrome primarily involves the mutation in the FMR1 gene.
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taphylococcus epidermis is best described as: Group of answer choices an opportunistic pathogen a mutualist symbiotic partner resident microbiota
Staphylococcus epidermis is best described as a resident microbiota, which means that it is a normal part of the human skin microbiome and typically does not cause harm or disease. However, in certain circumstances, it can become an opportunistic pathogen and cause infections. It is not typically considered a mutualist symbiotic partner.
It can become an opportunistic pathogen in certain situations, such as when it enters the bloodstream through a breach in the skin barrier or during medical procedures such as surgery or the placement of medical devices like catheters or prosthetic joints. In those cases, it can cause infections, such as bloodstream infections or surgical site infections.
A pathogen is any organism or agent, such as a virus or bacterium, that can cause disease or illness in a host organism. Pathogens can be transmitted through various means, including direct contact, contaminated food or water, airborne particles, and vectors like mosquitoes or ticks. They can cause a range of illnesses, from mild infections to serious and life-threatening diseases.
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What is turgidity? any answer
Answer:
In biology, turgid refers to cells or tissues that are swollen from water uptake. Many cell types in many different organisms can become turgid due to water uptake.Plant cells, in contrast to animal cells, are almost always turgid due to the action of a large vacuole in each of their cells.
Explanation:
Answer: definition :swollen and distended or congested.
Explanation:
6. What type of bond does carbon make? How many bonds will one carbon make? Why
is this important in terms of the shape and structure of macromolecules?
Answer:
First answer is covalent bonding
Second answer is 4 bonds. Because carbon has 4 electrons in its outermost shell
Lastly Yes, This allows them to form strong covalent bonds with a number of elements. Carbon can also bond with itself, allowing it to form long chains or rings of carbon atoms
Which of the following diseases is not caused by viruses?
Measles
Chickenpox
AIDS
Malaria
Answer:
malaria isn't caused by bacteria
The burning and cutting of the trees will affect the carbon cycle by adding___________ to the atmosphere in the case of burning the trees and by not removing enough __________ from the atmosphere in the case of cuting the trees.
Answer:
The burning and cutting of the trees will affect the carbon cycle by adding carbon dioxide to the atmosphere, in the case of burning the trees and by not removing enough carbon dioxide from the atmosphere in the case of cuting the trees.
Explanation:
When burning and cutting down trees, these actions significantly alter the carbon cycle, adding carbon dioxide in the case of burning trees and preventing said carbon dioxide from being eliminated when cutting down the trees that, through the process of photosynthesis, are responsible for cleaning the atmosphere transforming carbon dioxide into oxygen.
Where these processes lead to carbon cycle stagnation in the short and long term.
Why is the sea otter's diet of seafood a problem with some of the fisherman?
Answer:
Sea otters, because of their eating habits, are considered a “keystone predator,” predators that keep the ecosystem balanced. ... When not enough otters are around to eat the sea urchins, the urchin colonies grow unchecked and “urchin barrens” increase.
Explanation:
A large portion of precipitation in the rainforest occurs as a result of _______.
Answer:
transpiration
Explanation:
The answer is actually Transpiration. Transpiration by definition is the process where plants absorb water through the roots and then give off water vapor through pores in their leaves. In a rain forest, a lot of this occurs due to there being A LOT of plants.
Answer:
The answer is C Transition
Explanation:
As a cell grows larger, what happens to the surface area-to-mass ratio?
Answer:
The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. ... That is why cells are so small.
Explanation:
If the cell expands beyond a certain size, not enough material can cross the membrane quickly enough to accommodate the increased cellular volume.
What is surface area-to-mass ratio?The surface area to volume ratio is simply the surface area divided by the volume of an object. It expresses the proportion of surface area per unit volume of an object, such as a sphere or cylinder.
Smaller single-celled organisms have a high surface area to volume ratio, allowing them to survive by diffusing oxygen and material into the cell and waste out.
The greater the surface area to volume ratio, the more efficient this process can be.
Smaller cells have a much higher surface area to volume ratio, allowing material to diffuse quickly and efficiently throughout the entire volume of the cell.
Thus, the surface area to mass ratio will be smaller as a cell grow larger.
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Fill in the Blank Similarities in the early development of chickens and opossums suggest that these organisms share a __________.
Answer:
Similarities in the early development of chickens and opossums suggest that these organisms share a common ancestor
Indicate whether the glven act would create water retention or water loss In the body.
Dry mouth ~ Increased osmolarity of blood aldostorenone hyposecretion ~ Decreased renal tubular reabsorption of water Renin release ~ Hyponatremia
Increased blood pressure ~ Ingestion of water
ADH hypersecretion ~ Hyperkalemia
Increased water permeability of the DCT and collecting ducts of the kidneys ~ Hemorrhage
Exercise in a warm climate
ADH and testosterone increase the risk of heart and volume as the water is absorbed into the bloodstream into to the capillaries, bringing the blood salt concentration back to normal.
What does the renin enzyme do in response to a lower ph quilt in the kidney?An enzyme known as renin is released by kidney cells in response to low blood pressure. The kidneys reabsorb salt due to renin. Water retention is a constant side effect of sodium reabsorption. Blood pressure and volume are restored as a result.
Which hormone promotes water retention while guarding against dehydration?A deficiency of renin - angiotensin system (ADH), also known as prolactin, usually prevents hydration, or the kidneys and liver inability to react to ADH, are the two main causes of diabetes insipidus. The kidneys may hold onto the body's fluids thanks to ADH. The steroid.
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Why is it necessary to separate oxgynated blood and deoxgynated blood in living organisums?
Answer:
For efficient transportation of blood.
Explanation:
Given the original and mutated DNA strands below, identify the mutation.
ORIGINAL = A-T-T-C-G-G-A-A-C-T-G-A
MUTATED = A-T-T-C-G-G-G-A-A-C-T-G-A
It is an example of insertion mutation because there is an addition of a guanine nitrogenous base in the mutated DNA.
What is mutation?any alteration to a cell's DNA sequence. Mistakes in cell division can result in mutations, as can exposure to environmental DNA-damaging substances. Base substitutions, deletions, and insertions are the three different forms of DNA mutations.
Depending on the situation or location, the impacts of mutation might be advantageous, detrimental, or neutral.
Guanine is added to the mutated DNA. Therefore, it is an insertion mutation.
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10. Which of the following describes how DNA determines genetic inheritance?
A. A single nucleotide codes for a genetic trait
B. A pair of complementary nucleotides codes for a genetic trait.
C. A set of three nucleotides in a specific order codes for a genetic trait.
D. A long sequence of nucleotides in a specific order codes for a genetic trait.
Answer:
d
Explanation:
Your DNA contains a set of instructions that determine how much of a particular protein to create, which is called “gene expression.” And a number of different factors can influence the expression of a particular gene.
According to genetic inheritance, the correct option is "D" A long sequence of nucleotides in a specific order code for a genetic trait.
What is inheritance?Inheritance is the procedure by which genetic data is passed on from parent to child. This is why components of the same family tend to have similar characteristics. Inheritance describes how genetic material is passed on from parent to child.
Thus, the correct option is "D".
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Correlation between Mendels factors observed from the garden peas experimentation.
Mendelian inheritance was discovered when Gregor Mendel cross two pure breeds of peas. One is a pure breed of a purple pea plant and the other is a pure breed of a white pea plant. The result of the experiment is a hybrid offspring with violet flowers. The hybrid offspring is cross with each other and produce violet and white flowers.
For Mendel, it gave him the idea that there are "factors" affecting the inheritance of traits. These "factors" are now known as the genes, which are pairs of alleles that can have three genotypes: AA (homozygous dominant), aa (homozygous recessive), and Aa (heterozygous).
ANSWER:
In Mendel's experiment, the pure purple pea plant is homozygous dominant (PP) and the pure white pea plant is a homozygous recessive (pp). When they are crossed, the offspring become heterozygous/hybrid (Pp). Since the purple flower is dominant over the white flower based on their genotypes, the offspring will manifest a purple flower instead of a white flower.
But when two hybrid offspring are crossed, the produced offspring will either be purple or white. Thus, the "factors" can either be dominant or recessive.
Mendel carefully sorted the progeny derived from the parent plants based on the characteristics and counted the number that inherit each character.
Mendel studied inheritance in peas (Pisum sativum). He chose peas because they had been used for similar studies, are easy to grow and are biennial plants, and can be sown each year. Pea flowers contain both male and female parts, called stamen and stigma, and usually self-pollinate.
Mendelian factors are simply genes. Mendel while experimenting on the inheritance of traits (characteristics), used the term factors for the units that code for these traits. Later, these factors were given the term genes.
The main reason for their success of Mendel was that he took one character at one time in his experiments on hybridization. So it was easy. Other scientists also performed cross-hybridization for many characters, this made the experiments complex and they could not accurately explain the results.
Mendel observed seven different characteristics in the pea plants, and each of these characteristics had two forms. The characteristics included height (tall or short), pod shape (inflated or constricted), seed shape (smooth or wrinkled), pea color (green or yellow), and so on.
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