Identify the physical and biological environmental factors that can affect marine communities. What will be an ideal response?
Physical and biological factors in the environment determine the location and composition of
a community. Physical factors such as temperature, pressure, salinity, and the degree of force
exerted by waves or currents affect the success of an organism. Seaweeds adapted to cold
water usually cannot survive prolonged exposure to abnormally warm water, and lower-thannormal
salinity can dangerously disrupt the fluid balance of most marine invertebrates.
Biological factors are influences on an organism by members of its own population or other
populations, in its own or other communities. Biological factors include crowding, predation,
grazing, parasitism, shading from light, generation of waste substances, and competition for
limited oxygen.
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Which came first: domestication of plants or the domestication of animals?
A. domestication of animals B. domestication of plants C. Animals and plants were domesticated simultaneously. D. It depended upon where the domestication took place.
If the amount of snow and ice in the polar regions of Earth were to decline due to global warming, how would you expect this to affect the radiation budget of Earth?
Which biome is home to more plant and animal species than any other?
A) evergreen forest B) grassland C) deciduous forest D) tropical rain forest E) savanna
We know the age of the lunar highlands from ________
A) age estimates from cratering rates B) dating of lunar rocks collected by Apollo missions C) dating of lunar maria basalts collected by Apollo astronauts, and extrapolated back in time by relative chronology D) dating of earth rocks, and correlating to lunar events