Unit Test Answers

Environmental engineers minimize the impact of land development on the environment.

An individual who interprets laws related to the environment most likely works in which field?a.Environmental lawb.Environmental journalismc.Environmental activismd.Ecology

Transitions between biomes do not have to be sharp and sudden, which means that different biomes can share characteristics.

Which of the following represents change to an ecosystem brought about by abiotic factors?a.the decrease in plant populations due to a decrease in the available water supplyb.the increase in a predator population due to the increase in prey populationc.the decrease in plant species due to herd grazingd.the extinction of a plant species due to bacterial infection

What types of organisms will be affected by a decreased supply of water in an ecosystem?a.Producers, consumers, and decomposers will be affected.b.Producers and consumers will be affected.c.Consumers and decomposers will be affected.d.No organisms will be affected.

Environmental scientists are unconcerned with methods to preserve natural resources.

Which of the following is most likely to be a limiting factor for growth on the floor of a tropical rainforest?a.waterb.shelterc.sunlightd.prey

Describe the job of an environmental scientist.

Kelp plants have been known to grow up to _______. a. 1 foot per week b. 2 inches per day c. 10 inches per day d. 1 inch per hour Please select the best answer from the choices provided

What are the two main categories of ecosystems?a.effective and ineffectiveb.marine and freshwaterc.biotic and abioticd.aquatic and terrestrial

What will happen to an ecosystem that is experiencing a prolonged drought?

What are the main components needed to insure ecosystem stability?a.estuary, savanna, and tundrab.primary and secondary successionc.food, water, shelter and biodiversityd.moderate climate, sufficient space, and adequate sunlight

How does biodiversity affect the stability of an ecosystem?

Greater temperature fluctuations occur _______.a.in terrestrial ecosystemsb.in marine ecosystemsc.in river ecosystemsd.in lake ecosystems

If antibiotics had not been discovered, how would society most likely have been affected?