What statement below characterizes pigments’ function?
A. They absorb some photons.
B. They reflect all photons.
C. They absorb photons of all colors.
D. They absorb photons of all wavelengths.
E. They absorb ultraviolet wavelengths.
Answer: A
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During the Beagle journey, Darwin visited islands, allowing him to compare island species with continental species. In terms of framing his theory of evolution, why was this significant?
A. Because the island species had both similarities to their continental ancestors and unique adaptations to their island environments. B. Because the island species no longer shared traits with their continental ancestors. C. Because the species he saw on the islands had not changed from their ancestral continental form. D. Because the island species had very low reproductive and survival rates as compared with their continental ancestors.
For a neuron at rest, there is a higher concentration of ____ outside the cell than inside
a. Na+ b. K+ c. Ca2+ d. anions e. ATP
Which of the following is the fundamental mechanism that supports all forms of respiration?
a. osmosis b. kinetic energy c. diffusion d. momentum
Carnivores must be at or above which trophic level? Explain why
What will be an ideal response?