Light serves two important functions for life on Earth. What is light's one source that sustains life, and what information does it provide organisms with?
a. energy; information about chemical life
b. chemicals; information about physical life
c. chemicals; information about surrounding life
d. energy; information about physical life
Ans: d. energy; information about physical life
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The codon encoding the amino acid methionine functions as a start codon when it occurs at the beginning of a gene
a. True b. False
Descendant cells that are long-lived and "remember" a particular invader and mount a rapid intense response to it if it should reappear are ________
A) memory cells B) suppressor cells C) helper cells D) macrophages
Because of its function, this hormone is often called interstitial cell-stimulating hormone
A) LH B) inhibin C) FSH D) GnRH
Semisynthetic drugs developed to combat resistance are often called (analog/second generation/synergist) drugs
What will be an ideal response?