What contributes to cell membrane fluidity?
Ans: Proteins and lipids exist as separate but loosely attached molecules that can move around
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In a mature plant cell, ____ may occupy more than 90% of a mature plant cell's volume
a. the nucleus b. chromoplasts c. rough endoplasmic reticulum d. the central vacuole e. chloroplasts
The only cetaceans known to feed on warm-blooded animals are the:
a. sperm whales. b. bottlenose dolphins. c. killer whales. d. porpoises. e. minke whales.
What did the researchers conclude from the data shown in the figure? Select one:
a. Resistance to Bt toxin is not genetic. b. Resistance to Bt toxin is recessive. c. The size of larvae is dependent on treatment with Bt toxin. d. The number of larvae is dependent on treatment with Bt toxin. e. Resistance to Bt toxin is dominant.
An organism that uses CO2 for its carbon needs and sunlight for its energy needs would be called a/an
A. chemoheterotroph. B. halotroph. C. photoautotroph. D. heterotroph. E. saprobe.