In which of the following demographic patterns shown in the figure below would you expect the final coalescent event to be most recent? Explain your answer
What will be an ideal response?
ANS:
A and C. Coalescent times are shortest when the population is small or when a popula-tion is contracting.
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When light is absorbed by rhodopsin, ____
a. discs from the outer segment of the rods and cones begin to grow b. discs from the outer segment begin to shed c. cis-retinal is converted to trans-retinal d. trans-retinal is converted to cis-retinal e. the inner segment of the rods and cones releases neurotransmitters
Sessile colonial organisms such as bryozoans, hydroids, sponges and tunicates tend to dominate which one of the following habitats:
1.soft-bottom communities 2.hard-bottom communities
Respond to statements 118–122 with reference to the five biomes
listed below. a. tundra b. chaparral c. desert d. taiga (coniferous forest) e. deciduous forest M 118. In this biome you could find a black spruce. M 119. Plants in this biome are adapted to periodic fires. M 120. In this biome you would expect to find soggy masses of undecayed vegetation. M 121. This biome would be most likely to have a black oak. M 122. This biome is most likely to have a population of moose.
The process of turning solar energy into chemical energy by plants:
a. photosynthesis b. respiration c. fermentation