Fruit often has fleshy tissues that develop from the:
a. endosperm
b. ovule
c. seed coat
d. cotyledon
e. ovary wall
e
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Regarding CO2 fixation mechanisms in the autotrophic green sulfur bacteria,
A) Chlorobium uses the reverse citric acid cycle, and Chloroflexus uses the hydroxypropionate pathway. B) Chlorobium uses the hydroxypropionate pathway, and Chloroflexus uses the reverse citric acid cycle. C) both Chlorobium and Chloroflexus use the reverse citric acid cycle. D) both Chlorobium and Chloroflexus use the hydroxypropionate pathway.
Adenylyl cyclase catalyzes the reaction in which:a
a protein is phosphorylated. b. ATP is converted to cAMP. c. GTP is converted to GDP. d. PIP2 is split. e. calcium ions bind calmodulin.
________ is a hormone produced by the kidneys that increases the rate of red blood cell production
Fill in the blank(s) with correct word
Which of the following choices correctly pairs a mineral with one of its major functions in the body?
A) calcium, used in amino acid metabolism B) phosphorus, maintaining water balance C) iron, component of the nucleic acid backbone D) sodium, maintaining water balance in cells