In conifers, microspores develop into:

A. flagellated sperm
B. pollen grains
C. ovules
D. a nucellus
E. male cones


B. pollen grains

Biology & Microbiology

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Exhalation is a passive process unless we must forcibly exhale

a. true b. false

Biology & Microbiology

Give an example of exaptation in humans? What will be an ideal response?

Biology & Microbiology

Which of the following is an example of antiport?

-simultaneous movement of an amino acid and protons into the cell -simultaneous movement of an amino acid and protons out of the cell -coupling of the inward movement of water with the outward movement of protons -coupling of the inward movement of Na+ with the outward movement of Ca++ -none of the choices are correct.

Biology & Microbiology

Which organelle is involved in the breakdown of fatty acids and the detoxification of alcohol?

A) peroxisome B) Golgi apparatus C) smooth ER D) ribosomes

Biology & Microbiology