The field of ________ focuses on the ultimate cause of animal behavior in natural conditions.
Fill in the blank(s) with the appropriate word(s).
ethology
The field of ethology focuses on the ultimate cause of animal behavior in natural conditions.
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Which repair mechanism utilizes MutL, MutH, and MutS proteins in E. coli?
A. Recombinational repair B. Direct repair C. Base excision repair D. Mismatch repair E. Nucleotide excision repair F. Nonhomologous end joining (NHEJ)
Species on oceanic islands often closely resemble species on the nearest mainland, suggesting that the island and
mainland species share a common ancestry.
a. True b. False
The leaves of a plant are the main organs where photosynthesis occurs. Which of the following best describes how their structure is related to this function?
A) Most leaves contain all the structures that the plant requires to reproduce. B) Leaves are covered by a waxy cuticle that prevents water loss. C) The leaves are covered with tiny hairs that allow for more water absorption. D) Most leaves are broad and flat to absorb maximum sunlight.
Certain groups of cells move inward from the surface of the blastula in a carefully orchestrated migration called what?
A. Morula formation B. Blastulation C. Archenteron formation D. Gastrulation E. Cleavage