In African tribes, polygamy, the practice of one man having several wives, is practiced. The advantage to the female is
A. more surviving children.
B. help in child rearing.
C. good food source.
D. All of the choices are advantages to the female.
Answer: D
You might also like to view...
The herbicide 2,4-D affects the metabolism of dicots and kills most of them. What is a common feature of plants that are susceptible to 2,4-D?
A) branching leaf veins B) flower parts in threes C) one cotyledon in the seed D) vascular tissue scattered throughout the stem
The function of the phloem companion cells is to
a. assist vessel members to move organic substances. b. supply potassium ions for water absorption. c. help load organic compounds into neighboring sieve tubes. d. store the organic compounds transported by the sieve tubes. e. help transport organic compounds when the sieve tubes become overloaded.
When a molecule absorbs a photon, one of its electrons is raised to the ________ state
A) energetic B) quantum C) positive D) excited
Penicillin inhibits bacterial growth by preventing the cross-linking during peptidoglycan synthesis. Why does penicillin not inhibit growth of archaeal cells?
A. Archaeal cells do not have a cell wall. B. Pencillin is unable to penetrate the S layer to reach the peptidoglycan layer underneath. C. Penicillin is unable to penetrate the lipid outer membrane that blocks access of penicillin to the peptidogycan crosslinking enzymes. D. Most archaeal cells have a cell wall, but it is not composed of peptidoglycan.