Any substance that forms between the beginning and end of a metabolic pathway is a(n)

a. reactant.
b. end product.
c. substrate.
d. intermediate.
e. chemical.


D

Biology & Microbiology

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A red blood cell placed in a hypertonic medium will

What will be an ideal response?

Biology & Microbiology

The homeostatic interaction between the endocrine system and which other system is demonstrated by

the hypothalamus regulating the release of sex hormones? a. circulatory system b. reproductive system c. digestive system d. muscular system e. urinary system

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The order in which the stages of mitosis proceed is 

A. anaphase, interphase, metaphase, prophase, telophase. B. interphase, anaphase, metaphase, prophase, telophase. C. prophase, metaphase, anaphase, telophase, interphase. D. interphase, telophase, prophase, anaphase, metaphase.

Biology & Microbiology

The certainty of paternity is greatest in organisms that

A) are promiscuous. B) have extensive parental care. C) use internal fertilization. D) mate and lay eggs at the same time.

Biology & Microbiology