Which of the following animals does NOT have electroreceptors?
A. bony fish
B. sharks
C. duck-bill platypus
D. skates
E. pit viper snakes
E. pit viper snakes
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Carnivorous plants evolved because which of the following nutrients is often extremely limited in their habitats?
A. carbon B. CO2 C. O2 D. nitrogen E. iron
Anabolic-androgenic steroids
a. are synthetic forms of testosterone. b. are synthetic forms of estrogens. c. are used for treating early puberty. d. are natural variants of testosterone. e. are natural variants of estrogen.
What aspect of Mendel's background gave him the necessary tools to discover the laws of inheritance?
A. He lived in Austria. B. He had studied mathematics and probability. C. He was a monk. D. He was a teacher. E. He corresponded with Charles Darwin.
The majority of the staphylococci isolated from human skin are coagulase-positive
Indicate whether the statement is true or false