Reptilian embryos are protected from desiccation by a leathery shell. Similarly, which pair of structures protects seed plants' embryos and male gametophytes, respectively, from desiccation?
a) ovules-waxy cuticle
b) integuments-sporopollenin
c) ovaries-filaments
d) fruits-stamens
e) pollen grains-waxy cuticle
Answer: B