Which of the following is "male" in the life cycle of angiosperms?
A) Endosperm
B) Megaspore mother cell
C) Seed cone
D) Pollen grain
E) Embryo sac
D
Biology & Microbiology
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The technique used to make millions of identical copies of DNA from a small sample in a test tube is ________
Fill in the blank(s) with correct word
Biology & Microbiology
What is provided by the mitochondria that are present in the sperm?
a. energy for the movement of the flagellum b. energy for the acrosome to penetrate the egg c. nutrients for the developing embryo d. nutrients for the sperm
Biology & Microbiology
The tube connecting the throat to the stomach:
What will be an ideal response?
Biology & Microbiology
What do nociceptors detect?
A. stimuli of pain B. stimuli of smell C. stimuli of pressure D. stimuli of taste E. stimuli of touch
Biology & Microbiology