the study of interactions between organisms and their environments

New fuels are being produced by converting corn and grasses into compounds containing alcohols that can be broken down for energy in various engines. What is the purpose of this research?

Reduce the use of nonrenewable resources.

Impact of desalination on ocean environment? Salt water is abundant but unusable for irrigation and drinking. Desalination removes salt from ocean water. Concern: large amounts of recovered salts returned to ocean.

Alteration in ocean salt levels would cause loss of species and unbalanced populations in marine food webs.

The presence of wastes, such as plastic bags and motor oil, in lakes and streams miles away from developed areas suggests that

Ecosystems are interconnected and human action can alter ecosystem equilibrium.

The northern elephant seal was almost hunted to extinction in the 1800s. By the late 1890s, approximately one hundred seals were left, reducing the gene pool of the population. What will be the consequence of this reduction?

The elephant seals will be more vulnerable to environmental change.

What is most likely causing increased sedimentation in a lake, endangering the native habitat? Options: trees planted along the shore, construction of homes, amount of sunlight, amount of fish.

Construction of homes along the lake.

How does eutrophication from fertilizer runoff affect other organisms in water?

Oxygen is used up as algae is decomposed, reducing the amount available to other organisms.

As an ecologist, what factors would you raise with the local government regarding a strip mining company leasing land in a national park?

The threat to local biodiversity.

What is the most likely consequence of Japan and Norway not agreeing to stop whaling?

The whale populations are not rebounding as quickly as they might if all of the countries agreed not to hunt whales.

What could happen if a food chain or food web became unbalanced?

Change in a food chain/web, like the extinction of a species, can have a negative impact on the balance of the ecosystem.

Which of the following best describes an energy pyramid?

Each level represents a trophic level and the amount of energy available at each level

The arrows on a food chain/food web represent ________________.

the flow of energy from one organism to another

Why are there so few aquatic plants and phytoplankton that live at the bottom zones in the ocean?

Very little sunlight reaches these levels

Why are biologists removing pythons from the Everglades?

The pythons could prey on native organisms and cause native population to decline

What might you infer about the spatial distribution of American bison?

A clumped group provides better protection from predators.

What is one major distinction between primary and secondary succession?

Primary succession is the establishment of a community in an area with no soil, while secondary succession is the establishment of a new community in an existing ecosystem that was disturbed.

Which of the following choices represents the sequences in the primary succession of an ecosystem? Options: 1. bare rock, small annual plants, lichens, shade-intolerant trees, shade tolerant trees, perennial herbs and grasses 2. bare rock, lichens, small annual plants, perennial herbs and grasses, shade-intolerant trees, shade-tolerant trees 3. bare rock, lichens, perennial herbs and grasses, small annual plants, shade-intolerant trees, shade-tolerant trees 4. bare rock, lichens, small annual plants, perennial herbs and grasses, shade-tolerant trees, shade-intolerant trees

bare rock, lichens, small annual plants, perennial herbs and grasses, shade-intolerant trees, shade-tolerant trees

Biology EOC Review - Ecology Flashcards

Student preview

42 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Examples of a producer: frog, algae, worm, mouse

Back

algae

2.

FLASHCARD QUESTION

Front

Example of a decomposer: fungus, mouse, plants, frogs

Back

fungus

3.

FLASHCARD QUESTION

Front

What is a producer?

Back

an organism that uses sunlight to make its own food

4.

FLASHCARD QUESTION

Front

In the energy pyramid, which organisms have the most energy available?

Back

Producers

5.

FLASHCARD QUESTION

Front

Energy available in herbivores in trophic level 2 if producers in trophic level 1 have 1000 Kcal.

Back

100 Kcal

6.

FLASHCARD QUESTION

Front

Carrying capacity

Back

The number of individuals an area can carry

7.

FLASHCARD QUESTION

Front

Which graph shows population size increasing quickly?

Back

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