The "gray matter of the brain is largely made up of which of the following?

A. Neuron cell bodies

B. Meninges

C. Neuron cell axons

D. Corpus callosum

Answer Explanation:

The gray matter of the brain primarily consists of neuron cell bodies, along with dendrites, glial cells, and unmyelinated axons. It appears gray because it lacks the white fatty myelin sheath that covers many nerve fibers.

Therefore, the Correct Answer is A.

Q #1: A strand of DNA bases reads 5' AGCTAGCGT 3, what would the sequence of bases on the contemporary strand read?

A. 3' STOGUTCGCU

B. 5' AGCTAGCGT S

C. 3' SUCGAUCICA

D. 3' TCGATCGCA 5'

Answer Explanation

The complementary strand of DNA is formed by pairing complementary bases. In DNA, adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C). Additionally, RNA uses uracil (U) instead of thymine.

Given the sequence 5' AGCTAGCGT 3', the complementary strand would read:

3' TCGATCGCA 5'
Q #2: Experiments cannot validate hypotheses, only falsify them The statement above can be restated in which of the following ways?

A. Until disproved, an exploration for an observation is valid

B. A hypothesis that has not been falsified remains provisional

C. Certain concepts cannot be subjected to direct experimentation

D. Proving a hypothesis exempt from further testing

Answer Explanation

This means that a hypothesis is considered valid until it is disproved by experimental evidence. However, even if a hypothesis has not been falsified, it is still considered provisional and subject to further testing and scrutiny.
Q #3: An experienced mountaineer decides to climb Mount Everest, taking the same route in the same season and with similar materials and equipment used in a fatal 1924 expedition Which of the following is the scientific purpose of such a climb?

A. To measure the oxygen levels at high elevation

B. To assess why the earlier expedition failed

C. To show that modem technology makes climbing safer

D. To identify routes that can be explored in future climbs

Answer Explanation

The experienced mountain climber is replicating the conditions of the past expedition to understand why that earlier attempt was unsuccessful.

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The "gray matter of the brain is largely made up of which of the following?

More Questions on TEAS 7 Science

Q #1: A strand of DNA bases reads 5' AGCTAGCGT 3, what would the sequence of bases on the contemporary strand read?

Answer Explanation

Q #2: Experiments cannot validate hypotheses, only falsify them The statement above can be restated in which of the following ways?

Answer Explanation

Q #3: An experienced mountaineer decides to climb Mount Everest, taking the same route in the same season and with similar materials and equipment used in a fatal 1924 expedition Which of the following is the scientific purpose of such a climb?

Answer Explanation

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The &quot;gray matter of the brain is largely made up of which of the following?

More Questions on TEAS 7 Science

Q #1: A strand of DNA bases reads 5&#39; AGCTAGCGT 3, what would the sequence of bases on the contemporary strand read?

Answer Explanation

Q #2: Experiments cannot validate hypotheses, only falsify them The statement above can be restated in which of the following ways?

Answer Explanation

Q #3: An experienced mountaineer decides to climb Mount Everest, taking the same route in the same season and with similar materials and equipment used in a fatal 1924 expedition Which of the following is the scientific purpose of such a climb?

Answer Explanation

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The "gray matter of the brain is largely made up of which of the following?

Q #1: A strand of DNA bases reads 5' AGCTAGCGT 3, what would the sequence of bases on the contemporary strand read?