Units of proteins:
a. sugar
b. ribosomes
c. amino acids
d. nucleoids
Answer: c. amino acids
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The ____ is a Gram-negative bacterium
a. Clostridium b. Staphylococcus c. Streptococcus d. Salmonella e. Lactobacillus
The key gene in mammalian sex determination is
A) the testis-determining factor gene. B) the Y-factor gene. C) the holandric factor gene. D) the X-inactivation center. E) the lyonization gene.
What is a practice in which a family produces enough food to feed itself, accounting for nearly 50% of tropical
deforestation? a. monoculture b. subsistence agriculture c. slash-and-burn agriculture d. cattle ranching e. subsistence ranching.
From the list that follows, choose the adaptation characteristic of K-selected populations.
A. little to no parental care B. high mortality rate C. late age of first reproduction D. short life span