A pea plant that is not able to make GA1 will ____
a. grow away from light
b. not be able to make flowers
c. be a dwarf
d. not be able to make fruits
e. have nearly no root growth
ANSWER: c
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____ _____ of animals enabled them to function in so many ways that they have been able to diversify in ways that plants, fungi, algae, and protozoans have not
A. Organ systems B. Radial symmetry C. Bilateral symmetry D. Phylogenetic analysis
You're studying two species of frog. How would you know if gradualism or punctuated equilibrium played a role in the formation of the two species from their common ancestor?
A) The species would have more differences if speciation occurred gradually. B) The species would have more differences if speciation occurred suddenly. C) The species would be the same regardless of how the speciation occurred. D) The degree of difference depends less on the mechanism of speciation than on the time that's passed since speciation occurred.
In a trophic pyramid, the biomass of lower trophic levels is typically much greater compared to that of higher levels. What does this tell you about the transfer of energy between trophic levels? Select all that apply
A. Energy does not move from lower to higher trophic levels. B. Energy is gained as it moves from lower to higher trophic levels. C. Energy is lost as it moves from lower to higher trophic levels. D. The amount of energy remains the same as it moves between trophic levels.
If the amount of sodium suddenly increases in the blood, which of the following would occur?
A. Blood osmolarity would increase. B. Blood aldosterone levels would decline. C. Blood antidiuretic hormone would decline. D. Both blood osmolarity would increase and aldosterone levels would decline. E. Both blood osmolarity would increase and antidiuretic hormone levels would decline.