Concept 29.2

Question:
I. Identify three derived traits that distinguish plants from charophyceans and facilitate life on land. Explain.

Answer:
a) They have walled spores that are toughened by sporopollenin. They have multicellular, dependent embryos. And they have cuticle. All of which prevents land plants from drying out.

Question:
II. Identify each structure as either haploid or diploid:

sporophyte - diploid (2n)
spore - haploid (n)
gametophyte - haploid (n)
zygote - diploid (2n)
sperm - haploid (n)
egg - haploid (n)