Which of the heart chambers is the largest?

A. Left atrium

B. Right atrium

C. Left ventricle

D. Right ventricle

Answer Explanation:

Of the four heart chambers, the left ventricle is the largest. When it contracts, it pushes blood out to the organs and extremities of the body. The right ventricle pushes blood into the lungs. The atria, on the other hand, receive blood from the outlying parts of the body and transport it into the ventricles.

The basic process works as follows: Oxygen-poor blood fills the right atrium and is pumped into the right ventricle. from which it is pumped into the pulmonary artery and on to the lungs. In the lungs, this blood is oxygenated. The blood then reenters the heart at the left atrium, which, when full, pumps into the left ventricle. When the left ventricle is full, blood is pushed into the aorta and on to the organs and extremities of the body.

Therefore, the Correct Answer is C.

Q #1: Which of the following is NOT provided as a result of the valid research and observations recorded by scientists?

A. A better understanding of the physical world

B. The ability to predict possible outcomes affected by actions

C. The ability to prevent earthquakes and other natural disasters

D. The creation of various substances and technologies that enhance our world

Answer Explanation

Scientists make observations, gather data, and complete research over many years in order to compile knowledge that will provide insight into future disasters, such as earthquakes, storms, and global warming. Although science can be used to predict earthquakes and other natural disasters, there is currently no way of preventing them from occurring.
Q #2: Which of the following is NOT true concerning correlation?

A. Correlation can show the relationship between variables.

B. Correlation can show cause and effect.

C. Correlation can show linear relationships.

D. Correlation can show nonlinear relationships.

Answer Explanation

Correlations may be positive or negative and linear or nonlinear. However, correlation does not determine cause and effect. Correlation does not necessarily mean causation.
Q #3: How many different types of nucleotides are there in DNA?

A. One

B. Two

C. Four

D. Eight

Answer Explanation

There are four different nucleotides in DNA. Nucleotides are monomers of nucleic acids, composed of five- carbon sugars, a phosphate group, and a nitrogenous base. Nucleotides make up both DNA and RNA. They are essential for the recording of an organism's genetic information, which guides the actions of the various cells of the body.

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Which of the heart chambers is the largest?

More Questions on TEAS 7 Science

Q #1: Which of the following is NOT provided as a result of the valid research and observations recorded by scientists?

Answer Explanation

Q #2: Which of the following is NOT true concerning correlation?

Answer Explanation

Q #3: How many different types of nucleotides are there in DNA?

Answer Explanation

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