The branch of biology that explains both the diversity and the unity of life is ________
A) evolution
B) microbiology
C) taxonomy
D) genetics
A
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The organ system that produces and releases eggs and sperm.
A) Muscular
G) Respiratory
B) Reproductive
H) Skeletal
C) Digestive
I) Nervous
D) Cardiovascular
J) Endocrine
E) Integumentary
K) Lymphatic
F) Urinary
What is a characteristic of the cell walls of mature plant cells?
a. pectin b. cellulose c. glue-like polysaccharides d. lignin e. a gluey matrix containing rope-like strands
Which of the following have features that show morphological convergence?
A. Sharks, penguins, and porpoises B. Panthers and tigers C. Apes and monkeys D. Sharks, skates, and rays E. Mice, rats, and gerbils
If the frequency of PKU, an autosomal recessive disease, is 1% in males, what is the frequency of females with PKU? (You may assume that the population is in Hardy-Weinberg equilibrium.)
What will be an ideal response?