In the picture below, how many chromosomes are present?
A. 92
B. 22
C. 46
D. 23
Answer: C
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Which of the following is the terminology for an organism at the top trophic level of the food chain?
a. primary producer b. secondary producer c. apex consumer d. secondary consumer
Four of the five answers listed below are
participants in photosynthesis. Select the EXCEPTION.
a. phosphorylation b. carbon fixation c. NADH formation d. ATP formation e. electron transfer
Gastropods are the most numerous group of mollusks and include the ________
A) clams and oysters B) snails and slugs C) squid and octopi D) scallops and nautiluses
Water ecosystems become eutrophic when there is ________.
A. nutrient enrichment of waters B. acidification of waters C. nutrient removal from waters D. deoxygenation of waters