Most enzymes or bioactive molecules work effectively within a broad range of pH.
Answer the following statement true (T) or false (F)
False
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In biological nitrogen-fixation, ____
a. ammonia is converted to nitrogen gas b. nitrogen gas is converted to ammonia c. ammonia is converted to nitrate d. amino acids are linked into proteins in ribosomes e. nitrate is converted to ammonia
How are mitosis and cytokinesis alike?
A. Both involve DNA synthesis. B. Both involve division. C. Both involve the nucleus. D. Both involve mitochondria. E. Both involve apoptosis.
A cotyledon is which of the following?
a. embryonic root b. seed cover c. flower part d. seed leaf e. fruit
At high population density, __________ is favored, with organisms investing more time and energy in fewer, higher quality offspring.
Fill in the blank(s) with the appropriate word(s).