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
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A red blood cell placed in a hypertonic medium will
What will be an ideal response?
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
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.
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.