Sidearms are attached to ________.
A) B tubules
B) A tubules
C) central pairs
D) radial spokes
E) interdoublet nexin
B) A tubules
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An ecosystem such as a forest in the Pacific
Northwest of the United States is made up of
a. plants, animals and fungi. b. organisms and nonliving things. c. rocks and minerals. d. plants, protozoa, and fungi. e. all of these.
Tumor blood vessels are ____ with an irregular shape.
a. dilated b. stretched c. shaped d. none of the above
If the plants in a community produce 500 grams of organic matter per square meter per year that is available for animals in the community to eat, this amount of energy is known as the
A) availability factor of the community. B) trophic factor of the community. C) net primary productivity of the community. D) consumership of the community. E) secondary productivity of the community.
Turtle hatchling survivorship rate is low in many turtle species due to predation. Amanda researched the predatory rate on a species of turtle eggs in the Red River. The eggs were harvested from trapped turtles, and the egg's cloaca film (reproductive discharge) was either washed off or left on once gathered. Research suggests that predators use the female's cloaca scent to locate the eggs.The eggs were only handled when wearing gloves and then reburied along islands where the turtles were trapped. The nests were monitored by cameras and manually on foot, and data on nest predation was recorded.Based on the experimental design, what is the independent variable?
A. inducing egg laying B. time eggs spent in ground C. number of hatchlings D. no cloaca film on eggs