The amount of plant biomass in an area may increase if there is an increase in the amount of
A. symbiotic nitrogen-fixing bacteria.
B. succession.
C. competition.
D. denitrifying bacteria.
A. symbiotic nitrogen-fixing bacteria.
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True or false: The inner cell mass of the blastocyst becomes the embryo, while the outer cell layer of the blastocyst forms part of the placenta
A. true B. false
How could a molecule from plants that blocks the connection between nerves and muscles be useful as a pharmaceutical?
A) It could be used to produce restriction enzymes. B) It could be used as a source of antibiotic. C) It could be used as a muscle relaxant. D) It could be used as an antiviral medication.
What do the four membranes of apicoplasts imply about the nature of the endosymbiosis event that produced them?
What will be an ideal response?
Pyruvate can be converted into many other molecules by various biosynthetic and metabolic pathways, which makes it a central hub in the regulation of cellular metabolism. Which of the following molecules is not made from pyruvate?
(a) oxaloacetate (b) ethanol (c) lactate (d) NADH