____ molecules carry protein-assembly

instructions from the nucleus to the cytoplasm.
a. Template DNA
b. Messenger RNA
c. Transfer RNA
d. Ribosomal RNA
e. All of these


B

Biology & Microbiology

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When a forest fire destroys a habitat, but secondary succession allows the forest to be rebuilt, the new forest will continue to be modified over the years until equilibrium is reached and what has formed?

a. population b. primary community c. climax community d. ecosystem

Biology & Microbiology

External cues such as increasing day length or warming after a cold snap stimulate gibberellin

synthesis, which results in bolting in plants such as cabbages.

Indicate whether the statement is true or false.

Biology & Microbiology

Homeotic genes encode which type of protein?

a. transcription factors b. ribosomal proteins c. channel proteins d. membrane-associated proteins e. DNA methylases

Biology & Microbiology

What is the exchange of gases between the atmosphere and the blood through the alveoli called?

a) external respiration b) internal respiration c) inhalation d) cellular respiration

Biology & Microbiology