Which forms the outermost whorl of flower parts?
a. sepals
b. petals
c. anthers
d. carpels
e. stamens
Answer: a
Biology & Microbiology
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Endolithic phototrophic communities are MOST common in ________ environments
A) dry B) hot C) humid D) windy
Biology & Microbiology
Which is true of heterotrophs?
A) They capture light energy. B) They cannot be unicellular. C) They store energy in the form of heat. D) They can function as autotrophs in an emergency. E) They can obtain energy from consuming phototrophs.
Biology & Microbiology
Vasoconstriction causes an increase in the diameter of blood vessels, thus causing an increase in blood flow to the tissues
Indicate whether the statement is true or false
Biology & Microbiology
The event that initiated biological evolution was the flow of information from DNA to RNA to protein.
a. true b. false
Biology & Microbiology