Which of the following best describes the mechanism behind the change in beak size in the finch population?
a. The formation of two new finch species from a single parent species
b. A change in gene frequencies in the finch population due to the selective pressure from environmental change
c. A new allele appearing in the finch population as a result of a mutation
d. The achievement of dynamic equilibrium in the finch population as a result of homeostasis
Answer: b. A change in gene frequencies in the finch population due to the selective pressure from environmental change
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Four of the five answers listed below are secreted by exocrine glands. Select the exception
a. wax b. saliva c. hormone d. milk e. mucus
Which statement represents a good hypothesis?
a. Shoofly pie tastes good. b. There is life after death. c. Hemophilia is also known as "bleeder's disease." d. The swimming speed of Artemia increases at higher temperatures. e. Sparrows, robins, hawks, and pigeons are all birds and have wings; therefore, all birds have wings.
T or F; overstretching muscles creates muscle laxity
What will be an ideal response?
During cell fractionation, the ____ cannot be isolated since it is destroyed when intact cells are lysed
a. lysosomes b. mitochondria c. plasma membrane d. proteins e. nucleic acids