An example of temporary grouping which arises in the presence of a predator is called ________.
A. group predation
B. group hunting
C. selfish herd
D. confusion effect
E. social defense
Answer: C
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Conjugation is a type of horizontal gene transfer that relies on a structure known as a pilus to transport genetic material between bacteria
A. true B. false
The wings of bats and birds are ____
a. homologous because their common ancestor had wings b. not homologous because their similar internal bone structure evolved independently as an adaptation for flight c. homologous because they are adapted for the same function d. homologous because they have similar internal bone structure inherited from a common ancestor e. not homologous because wings evolved from different ancestral organs in birds and bats
One of the middle ear bones, the stirrup, pushes directly against what part of the inner ear?
a. auditory nerve b. organ of Corti c. oval window d. round window e. basilar membrane
Constriction of the pupil of the eye is caused by ____
a. skeletal muscle
b. cartilage c. tendons d. smooth muscle e. cardiac muscle