In the morning, you are woken by hundreds of birds chirping in the trees outside your window. Which of the following is evidence of adaptation for birds living in a group?
A. decreased aggression among members of the same species
B. increased availability of nesting sites
C. increased resistance to diseases
D. increased availability of seeds to feed on
E. protection against predators
E. protection against predators
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The probability of rolling a die twice and getting a 2 and a 6 in no particular order is
a. 1/3 b. 1/4 c. 1/8 d. 1/18 e. 1/36
In the figure above, which number identifies the tympanic membrane?
a. 4 b. 5 c. 6 d. 8 e. 10
Which of the following statements is TRUE?
a. Bryophytes have a short-lived sporophyte phase. b. Bryophytes lack true leaves and stems but possess true roots. c. Zygotes of bryophytes are released into the environment after their formation. d. Bryophytes do not reproduce asexually. e. Bryophytes produce male and female gametophytes that are identical in appearance.
The diploid portion of a plant life cycle is known as the:a
parental generation. b. sporophyte generation. c. daughter generation. d. gametophyte generation. e. reproductive generation.