When Mendel crossed true-breeding tall and short parental plants,
a. all the offspring were tall.
b. half the offspring were tall, the other half were short.
c. all the offspring were short.
d. the offspring were intermediate in height relative to the two parent plants.
e. about 90 percent were tall, but the rest were short.
a
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The current evidence indicates that hominins possessed all the major structural changes necessary for bipedalism by:
a. 10 million years ago. b. 6 million years ago. c. 1 million years ago?. d. 7 million years ago. e. 4 million years ago.
One result of slave-based economies in the New World was __________
a. the accumulation of capital and resources that made the Industrial Revolution possible b. the inhibition of colonial migration to the Americas for lack of jobs there c. a focus on nonagricultural economic practices in the New World such as manufacturing d. a more egalitarian distribution of wealth among world superpowers
Robust australopithecines were extinct by:
a. 1 mya b. 3 mya c. 4 mya d. 5 mya e. their lineage continued