What protects mRNA from attack by cellular enzymes?
A) RNA splicing
B) the removal of exons
C) the lack of RNA-digesting enzymes in the cytoplasm
D) a cap and tail
D
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The pressure required to stop water from moving across the membrane by osmosis is called
A. transport pressure. B. crenation pressure. C. atmospheric pressure. D. osmotic pressure. E. mechanical pressure.
Using the following list of taxonomic groups, place them in order from least inclusive to most
inclusive, labeling the taxonomic hierarchy for each group. Canis canis, Carnivora, Animalia, Mammalia, Chordata, Canis, Canidae, Eukarya 1. (Least Inclusive) 2. 3. 4. 5. 6. 7. 8. (Most Inclusive)
What will be an ideal response?Adaptive responses of predators to prey defenses
include a. camouflage. b. bright coloration c. ways of avoiding repellents and toxins. d. speed. e. a, c and d are all correct.
Which statement about chlorofluorocarbons is FALSE?
A. They can destroy ozone. B. They are odorless. C. They are a greenhouse gas. D. They break down very slowly. E. Their action is allowing more UV radiation through the atmosphere.