An example of stabilizing selection would be___________.
A. Small lizards do not survive cold winters while large lizards are more visible to prey.
B. ?All lizards have equal survival rates, regardless of size.??????
C. ?Small lizards are able to avoid detection while large lizards are too big for prey.??????
D. Larger lizards are not targets for predators.???????
Answer: A. Small lizards do not survive cold winters while large lizards are more visible to prey.
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The concept that most morphological changes in species occur gradually over long periods of time is known as the
____.
a. phyletic gradualism hypothesis b. principle of convergent evolution c. punctuated equilibrium hypothesis d. unified theory of evolution e. concept of adaptive radiation
Placing a ripe apple with other apples that are not ripe will cause the other apples to ripen sooner
Which type of plant hormone is responsible for this effect?
a. brassinosteroids b. ethylene c. auxins d. oligosaccharins e. abscisic acid
Icefish have which type of circulatory system?
A. closed with a two-chambered heart B. opened without a heart C. closed with a single-chambered heart D. closed with a three-chambered heart E. closed with a four-chambered heart
What is the microtubule arrangement of a flagellum or cilium?
a. 9 x1 array b. 9 + 1 array c. 9 x 3 structure d. 9 + 2 arrangement e. 9 + 3 arrangement