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
A.Make turtles will move to cooler waters,leaving females in warmer regions.
I think.
Answer:
In biology, a gene is a basic unit of heredity and a sequence of nucleotides in DNA or RNA that encodes the synthesis of a gene product, either RNA or protein. During gene expression, the DNA is first copied into RNA.
Euchromatin is a lightly packed form of chromatin that is enriched in genes, and is often under active transcription. Euchromatin comprises the most active portion of the genome within the cell nucleus. 92% of the human genome is euchromatic.
The genes present in heterochromatin are usually inactive. The genes present in euchromatin are either already active or will be active during growth. Heterochromatin is transcriptionally-inactive. Euchromatin is transcriptionally. (This one here is the difference)
Hey the answer is , The protein is too large to simply diffuse across the phospholipid bilayer of the cell, so it uses phagocytosis to diffuse across, where it is contained in a vesicle and pinched into the cell? Credits to yahoo answer. Hope I could help sweets