Explain why it would probably be a money-losing venture to establish a plantation to grow corn in an area that used to be tropical rain forest
What will be an ideal response?
The soil is infertile because the nutrients are tied up in the vegetation. What few nutrients are available after the forest is cut or burned tend to wash away in the heavy rains. Tropical soils also do not retain nutrients well.
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Which group's members have both lungs and gills during their adult lives?
A) sharks, skates, and rays B) lungfishes C) lancelets D) turtles E) alligators
Allopatric speciation typically occurs in two stages. The first stage is ____ of two populations and the second stage is
____.
a. geographic separation; reproductive isolation b. natural selection; geographic separation
c. mutation; reproductive isolation d. reproductive isolation; geographic separation e. genetic drift; reproductive isolation
You have discovered a fungus that has septate hyphae and is partnered with a photosynthetic cell. What type of
fungus is it, and how do you know this? What will be an ideal response?
Which of the following is a correct description
of a prokaryote shape? a. A coccus is corkscrew shaped. b. An archaean is arch shaped. c. A bacillus is rod shaped. d. A spirillum is shperical. e. All of these are correct.