Answer:
As a result of skeletal muscle contraction in physical exercise, the venous return - amount of blood that goes to the heart - is greater, so preload would be increased, which would result in a larger cardiac output.
Explanation:
Preload is a term associated with heart function, which consists of the amount of blood that reaches the ventricles from venous circulation.
This preload is able to occupy a space and stretch the walls of the ventricle and determine the amount of blood that will be pumped during ventricular contraction (systole).
In terms of cardiovascular function, preload depends on:
- <em>Final Diastolic Pressure of the Left Ventricle.
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- <em>Final Diastolic Radius of the Left Ventricle.
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- <em>Thickness of the ventricle.
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- <em>Central venous pressure
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- <em>The speed of venous return.
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A consequence of the increased volume of blood in the ventricle -due to a higher preload- is the increase in cardiac output.
Learn more:
Decreased cardiac ouput brainly.com/question/8677396
I’m pretty sure it would be Offspring A, because it looks like the parent and the parent reproduces asexually, so it is most likely it’s own traits. Hope this helps!
Answer:
Asexual reproduction does not involve the fusion of gametes or change in the number of chromosomes. Sexual reproduction involves combining genetic information from two individuals of different sexes. Asexual reproduction results in offspring that are genetically identical or mostly identical.
Hope this helps!
A- Gene- it's a sequence of DNA that code a protein with a certain function.
It determines a certain trait and is passed from parent to offspring
B- Chromosomes- a long sequence of DNA that contains multiple genes and is structured like an X; has a centromere in the middle.
Chromosomes can be autosomes( when they are not carrying sex-related genes) or allosomes (the X or Y chromosomes)
C-allele- it's a variant or alternative form of a gene (for example, in the gene that codes the color of the eyes the alleles possible are: blue, green, brown). For every gene, we have two alleles- one inherited from the father and the other from the mother.
D- homozygous- When the two alleles are the same we say homozygous. That can be either both dominant alleles (AA) or both recessive alleles (aa).
Since they are the same variant, they code the same trait.
When these variants are different they have another term.
E- Heterozygous- When the two alleles are different from each other, we say heterozygous. Most of the time, it's represented by one dominant allele, and a recessive allele (Aa).
They code different traits.
F- Dominant- Mendel concluded that some alleles are dominant and others are recessive. When one dominant allele is present, it's enough to make the recessive allele unexpressed. In other words, it 'hides' or masks the recessive allele.
G- sex-linked traits
Sex chromosomes contain genes that determin the sex of a person. Two X chromosomes result in a femal and one X plus a Y result in a male.
In those chromosomes, there are genes specific for each gender, and in those chromosomes, there are genes that code for certain traits- the sex-linked traits.