How can the fossil record provide evidence for evolutionary relationships?

Biology

2 answers:

xenn [34]3 years ago

7 0

To show how the animal fossil

scoundrel [369]3 years ago

7 0

We can observe the structure of fossils from different time periods and tell if the fossils had any kind of similarities or differences. They also help in telling the evolutionary changes occured.

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Describe the current beliefs on why people age.

Lisa [10]

Programmed Theories - it suggests that our body is designed to age and that there is a timeline that our bodies follow, and switch in our genes that switches off over time.

Error Theories - we age because of environmental hazards that our bodies accumulate over time.

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3 years ago

The heart is the major organ in the circulatory system. Which region of the heart supplies oxygenated blood to the aorta?

aev [14]

The LEFT VENTRICLE of the heart supplies oxygenated blood to the aorta.

Aorta is the main artery that supplies oxygenated blood from the heart to other organs and tissues (except lungs, lungs are for gas exchange instead) so that they get enough oxygen and nutrients.

Meanwhile, the heart has 4 chambers, left and right atrium, and left and right ventricles. Atrium are for receiving blood from different vessels, and ventricles are for pumping blood out of the heart.

Since only the left ventricle is connected to the aorta, so, the answer should be left ventricle.

Reference picture by amac training.

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3 years ago

Explain the relationship between the c-h bonds and the caloric value. (Does one control the other?)

velikii [3]

The caloric value of food refers to the amount of energy that is produced as a result of complete combustion of that food under normal conditions.
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a.) attachment and entry

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c.) cell division

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