Refer to Figure 22-1. An important adaptation for all primates resulting from the structure labeled A is:
a. bipedal locomotion.
b. knuckle walking.
c. clinging to branches of trees.
d. increased diversity in the diet.
e. improved social interactions.
C
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In eastern Oregon, the mycelium of a single individual Armillaria ostoyae, a member of the fungal
phylum ____, covers an area equivalent to 1665 football fields (nearly 6000 m across).
a. Glomeromycota b. Basidiomycota c. Chytridiomycota d. Zygomycota e. Ascomycota
Urination depends on
A) blood proteins. B) water movement into the proximal tubule. C) the neural micturition reflex. D) the concentration of urea in the distal tubule. E) countercurrent exchange in the vasa recta.
What is a major difference between meiosis II and mitosis in a diploid animal?
A) Homologues align on the metaphase plate in meiosis II. B) Sister chromatids separate in mitosis, and homologues separate in meiosis II. C) Meiosis II occurs in a haploid cell, while mitosis occurs in diploid cells. D) Crossover takes place in meiosis II.
Which of the following statements about mutations is false? a. Most mutations are neutral or deleterious
b. Mutations are small scale changes in DNA. c. Mutations affect individuals but cannot be passed on to offspring. d. Mutations can improve an organism's adaptation to its environment.