A researcher found a beautiful plant while traveling in Alaska and collected its seeds. When she came back to Florida, she soaked some seeds in pure water and some in water with a hormone
When she put the seeds in soil to grow, only the seeds that had been soaked with the hormone germinated. The hormone most likely was _____.
A) gibberellin
B) abscisic acid (ABA)
C) auxin
D) ethylene
Answer: A
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Microscopic fossils are also called microfossils
A. These minerals are needed as cofactors for enzymes needed in photosynthesis. B. These minerals are needed as cofactors for enzymes needed in cellular respiration. C. These skeletons allow for more complex reactions to take place inside the cell. D. These skeletons probably afforded them protection from being eaten. E. These minerals are necessary to maintain genome integrity.
Which early scientist proposed that cells arise only from preexisting cells by a process of division?
a. Anton van Leeuwenhoek b. Robert Brown c. Matthias Schleiden d. Theodor Schwann e. Rudolf Virchow
How might a species' range be extended?
A) through increased migration rates B) through increased immigration rates C) through climate change D) through decreased reproductive rates
Which of the following pairs is mismatched?
A) endoplasmic reticulum — internal transport B) Golgi complex — secretion C) mitochondria — ATP production D) centrosome — food storage E) lysosome — digestive enzymes