Work by Charles Darwin and Francis Darwin was instrumental in the discovery of ____
a. auxins
b. brassinosteroids
c. jasmonates
d. cytokinins
e. gibberellins
ANSWER: a
Biology & Microbiology
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Each angiosperm pollen grain contains how many sperm cells?
a. millions b. four c. one d. hundreds e. two
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Cell adhesion molecules can be divided into four major groups. Which of the following is not one of those groups?
a. Selectins b. Integrins c. Collagens d. Immunoglobulin superfamily
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The most important role of meiosis in sexual reproduction is
What will be an ideal response?
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