Early investigators thought the oxygen produced by photosynthetic plants came from carbon dioxide. In fact, it comes from _____
A) water
B) glucose
C) air
D) electrons from NADPH
A
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What is one of the criteria that all genetic material must meet?
A. It does NOT contain the information necessary to construct the entire organism. B. It must be passed from offspring to parent. C. It must be able to be copied D. It must have a limited amount of variation.
Why did Mendel perform reciprocal crosses?
A) To obtain enough plants to perform the experiments that Mendel wanted. B) To test a hypothesis that stated the ovum carries all the information for progeny. C) To be able to breed plants year round. D) To determine whether the inheritance of a trait depends on which parent carries the trait.
Which organ releases hormones that assist with the development of the immune system and continues to shrink as an individual matures and ages?
a. thymus b. thyroid c. thalamus d. testes
Apoptosis is the process of
A. mitosis. B. the cell cycle. C. programmed cell death. D. programmed cellular reproduction. E. replication.