What important role do fungi play in many ecosystems?
A) They decompose organic material.
B) They pollinate plants.
C) They disperse the fruits of angiosperms.
D) They perform photosynthesis.
A
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In humans, hair texture is an incompletely dominant trait. Curly is the dominant genotype, wavy is heterozygous, and
straight hair is recessive. What is the probable phenotypic ratio for a cross between a man with wavy hair and a woman with curly hair? a. All wavy hair b. 3/4 wavy hair; 1/4 straight hair c. 1/2 wavy hair; 1/2 curly hair d. All curly hair e. 1/4 curly hair; 1/2 wavy hair; 1/4 straight hair
Synaptic plasticity is the ability of the:a
synaptic connections to change in response to experience. b. neurons to bend when the body moves. c. glial cells to move through the nervous system. d. neuron cell bodies to produce new dendrites. e. neurotransmitters to remain in the synapse for a longer time
What is the first step in the Calvin cycle?
a. O2 attaches to CO2. b. O2 attaches to G3P. c. CO2 attaches to RuBP. d. CO2 attaches to Rubisco. e. CO2 attaches to phosphoglycerate.
In fermentation, yeast produces
A. ethyl alcohol. B. oxygen. C. hydrogen. D. All of these answers are true.