Secondary succession is likely to occur ____
a. in a newly formed volcanic island
b. in an abandoned field
c. in a mature forest
d. on land exposure by glacier retreat
e. on land with little to no soil
b
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While walking a cornfield, you notice roots emerging from the corn stalks themselves, and you suspect that these roots are helping to hold the plants upright. These roots belong to a category of roots known as
A) Taproots B) Fibrous roots C) Adventitious roots D) Root hairs E) Special roots
If she moves the repressor gene (lacI), along with its promoter, to a position at some several thousand base pairs away from its normal position, we would expect the _____
A) repressor will no longer be made B) repressor will no longer bind to the operator C) repressor will no longer bind to the inducer D) lac operon will be expressed continuously E) lac operon will function normally
Where do the carbon atoms in glucose come from?
A. Sunlight B. Carbon dioxide C. Water D. NADPH
You would not have an autoimmune disease if you were suffering from
A. rheumatoid arthritis. B. lupus. C. Graves' disease. D. type I diabetes. E. polio.