The embryo sac with seven cells and eight nuclei undergoes double fertilization
a. Mosses
b. Ferns
c. Conifers
d. Gingkos
e. Angiosperms
Ans: e. Angiosperms
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Echinoderms are unique in their (choose all that apply)
A. five-fold symmetry. B. skeletons made of interlocking plates of protein. C. water vascular system. D. Skeletons made of interlocking plates of calcite E. Filter feeding
All of the alleles for all the loci present in a population is called the:a
population variation. b. evolutionary potential. c. population compilation. d. gene pool. e. allele collection.
The accumulation of glucose 6-phosphate inside a bacterial cell via phosphorylation of glucose is an example of
A) facilitated diffusion. B) group translocation. C) osmosis. D) plasmolysis. E) diffusion.
Which is mismatched?
A. Tapeworm - cestode B. Whipworm - trematode C. Fluke - trematode D. Threadworm - nematode E. Pinworm - nematode