What is a pollen grain?a. male gametophyteb. female gametophytec. male sporophyted. sperm

The appearance of cuticle and stomata correlated with what event in the evolution of green plants?a. the first upright growth formsb. the first woody tissuesc. growth on landd. the evolution of the first water-conducting tissues

Why is chlorophyll green?a. It absorbs all wavelengths in the visible spectrum.b. It absorbs wavelengths only in the red portions of the spectrum (680–700 nm).c. It absorbs wavelengths only in the blue part of the visible spectrum (450–480 nm).d. It absorbs wavelengths in only the blue and red parts of the visible spectrum.

In angiosperms, which of the following is correctly paired with its chromosome count?(A)microspore—n(B)zygote—n(C)egg—2n(D)megaspore—2n

In plants, which of the following are produced by meiosis?a. haploid gametesb. diploid gametesc. haploid sporesd. diploid spores

Evaluate the following statements regarding seeds. Select True or False for each statement.T/FThey contain an embryo.T/FThey contain nutritive tissue for the embryo.T/FThey consist entirely of diploid cells.T/FThey are also referred to as spores.

At what point in photosynthesis is the electromagnetic energy of light first converted into chemical energy?

Why is the chlorophyll in chloroplasts less likely to produce fluorescence compared to extracted chlorophyll molecules?

What does it mean to say that a life cycle is gametophyte dominant versus sporophyte dominant?