Choose the 4 reasons that contributed to Mendel selecting the garden pea as his experimental subject. A. It is not possible to perform cross-pollination in peas.
B. There were a large number of pure varieties.
C. The garden pea had a relatively long generation time.
D. The garden pea had a relatively short generation time.
E. It was one of the few plants that can be grown in a garden.
F. Garden peas can self-fertilize.
G. Earlier investigators had produced hybrid peas.

Crinoids, also known as sea lilies, appear to be sea plants but are not plants at all. crinoids are an echinoderm species which uses anchoring structures called holdfasts to attach themselves to the sea floor. crinoids were most abundant in pennsylvania during the mississippian period, which ranged from 375 to 320 million years ago. fossils of the crinoids shows that during most of this time pennsylvania was that provided favorable conditions for crinoid growth. a) glacial terrain b) a dry and sandy plain c) mostly mountain ranges d) covered by warm, shallow seas