One benefit of sexual reproduction over asexual reproduction is that:a
more offspring can be produced.
b. the offspring are all identical to the parents.
c. the interaction of the genes from both parents brings about genetic variation.
d. evolution will occur at a slower rate when there are two parents.
e. there is less variation from generation to generation.
C
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In a study examining the effects of disturbances and recruitment on the growth of coral in a portion of the Great
Barrier Reef, researchers concluded that changes in the coral colonies are ____.
a. due to external factors only. b. due to internal factors only. Chapter 53 - Population Interactions and Community Ecology Cengage Learning Testing, Powered by Cognero Page 16 c. due to both external and internal factors. d. solely due to human interference. e. not observable after disturbances
Which of the following is a testable hypothesis?
A) Taking zinc lozenges at the first sign of cold symptoms is wise. B) Avoiding contact with other people reduces the chance of catching a cold. C) Being a good driver makes you less likely to catch a cold. D) Sleeping 8 hours a night makes you feel better when you have a cold.
Bat-pollinated, night-blooming flowers would most likely display which two characteristics?
a. blue petals and sticky pollen grains b. yellow petals and the scent of rotting flesh c. orange petals and no scent d. white petals and a strongly sweet scent e. red petals and sticky pollen grains
If you were raising frying chickens, how much meat could you produce given a metric ton (1000 kg, or 2200 lb) of feed?
A) 100 kg B) 1000 kg C) 200 kg D) 800 kg