A unicellular, photosynthetic nucleated cell would belong to Domain:
a. Archaea
b. Bacteria
c. Eukarya
Answer: c. Eukarya
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Which of the following is the most likely explanation for the band pattern seen in lane 6?
A. Protein D is a restriction enzyme and cut the DNA fragment into two DNA fragments. B. Protein D binding to the CRP-binding site is less tight compared to cAMP-CRP binding. C. Protein D has a smaller mass than the cAMP-CRP protein. D. Protein D removed radioactive label from the DNA fragment.
Regardless of the source of energy, virtually all living organisms convert their energy into ________ before using it
a. light and heat b. carbon dioxide c. glucose d. ATP
In an open circulatory system, the circulatory fluid is called:
a. blood b. plasma c. interstitial fluid d. lymph e. hemolymph
Darwin's finches, and the studies by the Grants, finally proved that
A. differences in beak size were the result of natural selection and were inherited. B. beak size adjusted within a given year depending on nutrition status. C. beak sizes were completely random and no pattern was determined. D. beak sizes made no difference as to the food being eaten.