Why are mosses and liverworts dependent on water for reproduction?
A) Sperm must swim through water to reach and fertilize eggs.
B) Egg and sperm production occurs only when the plants are immersed in water.
C) Eggs are passively transported to sperm by water.
D) Sperm are passively transported to eggs by water.
E) Eggs and sperm are released into water and then unite.
A
You might also like to view...
The tube feet of sea stars are used primarily for
a. excretion of excess water. b. locomotion. c. reproduction. d. circulation. e. sensation
Unlike other epithelia, epithelia that make up the capillaries have hole in them called fenestrations
a. true b. false
A(n) ________ is a special type of lysosome used by a cell to selectively digest and recycle cytoplasmic contents, such as mitochondria.
A. autophagosome B. turnover lysosome C. recycling vacuole D. suicide vacuole
You modify one species of rhizobia (Species A) to express flavonoid receptors and Nod factors from another species of rhizobia (Species B). This modified rhizobia is likely to
A. form a symbiosis with the plant with which species A normally forms a symbiosis. B. be unable to bind flavonoids. C. form a symbiosis with the plant with which species B normally forms a symbiosis. D. be unable to fix nitrogen.