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the removal of which of the following organisms would have the biggest impact on a marine ecosystem? A. fish B. whales C. shrimp D. plankton
an undersea volcano erupts creating a new island off the coast of south carolina. Life slowly starts appearing on the islands. what would probably be the first species to grow and survive? A. maple trees B finches C. lichens D. grasses
the changes in communities that take place on a new island would best be described as _______ A. primary succession B secondary succession C. tertiary succession D. none of the above
which of the following is true? A. temperate forests have more rainfall than tropical rain forest B. tropical rain forest have more species of trees than temperate forests C. temperate forest are closer to the equator than tropical rain forests D. tropical rain forests are younger than temperate forest
B. tropical rain forest have more species of trees than temperate forests
the photograph shows a forest in the united sates. the animal rainfall is 300 cm and the average temperature is 15c what type of forest is shown in the photograph?A. tropical rain forest B. coniferous forest C. temperate rain forest D. temperate forest
C. temperate rain forest
a lack of food prevents further growth in a deep population. this is an example of a ______. A. range of tolerance B. limiting factor C. photic zone D. biome
B. limiting factor
most species of ocean fishes spend their entire life in salty water. however some fishes such as the flounder and salmon travel up freshwater rivers to reproduce. which statement is most likely true about the salmon and flounder? A. they arent affected by physiological stress B. they have no zone of intolerance C. they have wider optimum range D. they are pioneer species
C. they have wider optimum range
a deep sea fisherman catches an ocean fish. this fish like other of the same species has no developed eyes its habitat is most likely the ______ A. intertidal zone B. aphotic zone C. photic zone D. zone of intolerance
B. aphotic zone
Locations of boimes are usually determined by _____. A. temperature and altitude. B. Temperature and precipitation. C. Altitude and precipitation. D. Soil type and temperature.
B. Temperature and precipitation
The kangaroo rat conserves its water and obtains all its water from the food it eats. In what ecosystem is the kangaroo rat most likely to live. A. Tropical rain forest. B. Desert. C. Taiga. .D. savanna
cereal grains grow best in the biome called the _____. these aeras are called _____ in the united states and ______ in africa
grasslAnd prairies savannas
an ecologist climbs the tallest tree in a patchof rain forest. she is probably at the ____ layer
between the north pole and the taiga lies the _____ . in this area there are more _____ a furry ratlike animal than any other mammals
beech trees and maple trees dominate a forest that has stayed the same for 100 years. the ecological tearm for this stable community is a _____ community
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