A plant and an animal are both living things. According to the Cell Theory, what can you conclude about these two very different organisms?
A. Plants have cells but animals do not.
B. They are both made of one or more cells.
C. They both come from the same kind of cell.
D. They both come from a non-living organism.
B. They are both made of one or more cells.
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The developmental transition during which plants become able to respond to external and/or internal signals that promote flowering is known as
A. perennial development. B. abscission. C. initiation. D. phase change. E. cloning.
If a drug interferes with the function of ribosomes, which of the following is likely to occur?
A. DNA will not be able to make copies of itself. B. Proteins will not be produced. C. Mutations will occur to the DNA. D. Messenger RNA will not be manufactured.
Molecules that traverse a membrane against their concentration gradient do so by _______ transport.
a. active b. passive c. carrier-mediated d. channel-mediated
The arrangement of organs and tissues in their characteristic places in 3-D space defines _____
A) pattern formation B) differentiation C) determination D) organogenesis