In conifers, microspores develop into:
A. flagellated sperm
B. pollen grains
C. ovules
D. a nucellus
E. male cones
B. pollen grains
You might also like to view...
Exhalation is a passive process unless we must forcibly exhale
a. true b. false
Give an example of exaptation in humans? What will be an ideal response?
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.
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