The ______________________________ Occurs When a Gametophyte Generation Alternates with a Sporophyte

Q38: In some seeds,_ is used up in

Q39: A seed has three parts: an embryo,a

Q40: During the sporophyte generation in the life

Q41: _ surrounds the seed(s)in flowering plants,aiding in

Q42: A _ is an opening into the

Q44: Which phyla lacks a vascular system?<br>A)Pterophyta<br>B)Gnetophyta<br>C)Ginkgophyta<br>D)Hepaticophyta<br>E)Arthophyta

Q45: How do the seeds of angiosperms differ

Q46: In double fertilization,the second fertilization after fertilization

Q47: Seedless vascular plants,like ferns,require _ for fertilization.<br>A)water<br>B)bees<br>C)wind<br>D)animals<br>E)All

Q48: Which phyla do ferns belong to?<br>A)Lycophyta<br>B)Pterophyta<br>C)Gnetophyta<br>D)Ginkgophyta<br>E)Arthophyta