Which of the following differences between warm-water and cold-water species is not directly caused by differences in water temperature?
A) Cold water organisms reproduce later and less frequently than those in tropical waters.
B) Floating organisms are physically smaller in warm waters than in colder waters.
C) Total biomass of plankton in the tropics is far less than that found in high-latitude waters.
D) Tropical organisms grow faster and have a shorter life expectancy than those in colder water.
E) Warm-water species often have ornate plumage which is absent in the larger cold-water species.
Question 2
Judge the following sentence according to the criteria given below: Scientists have proposed that serpentinization could have fueled Earth's first life BECAUSE it occurs across large areas and can be sustained for long periods of geologic time.
A) The assertion and the reason are both correct, and the reason is valid.
B) The assertion and the reason are both correct, but the reason is invalid.
C) The assertion is correct, but the reason is incorrect.
D) The assertion is incorrect, but the reason is correct.
E) Both the assertion and the reason are incorrect.
Upward transport of water in xylem.
Terrestrial plants and animals can be characterized by analogous pathways for water gain and loss.
Water-vapor Images
The Importance of Water
Water forms spheres of hydration
The two species of cichlids in Lake Apoyo exhibit distinctive morphologies