Ecology and Biomes Env. Science

Question 1

A niche restricted by competition is a

Accepted Answer

realized niche.

Question 2

The ability to perform photosynthesis or chemosynthesis defines a ____________________.

Accepted Answer

producer

Question 3

The ultimate source of energy in an ecosystem in which deer eat grass and coyotes eat deer is

Accepted Answer

B. the sun.

Question 4

Water with a salinity that is greater than fresh water but less than saltwater is classified as

Accepted Answer

brackish.

Question 5

The first level of all food pyramids

Accepted Answer

consists of primary producers.

Question 6

Which zone of an aquatic ecosystem tends to have the highest temperatures?

Accepted Answer

photiczone

Question 7

An interaction in which an individual of one species kills and consumes an individual of another is called

Accepted Answer

predation.

Question 8

In a food web that consists of grass, mice, deer, coyotes, and hawks, which species is likely to have the grtst biomass

Accepted Answer

Grass

Question 9

A deer browsing on a shrub is an example of

Accepted Answer

herbivory.

Question 10

To help them survive in the tundra, caribou have various adaptations, such as

Accepted Answer

wide hooves for travel on mud and snow.

Question 11

____________________ is the vertical flow of cold, nutrient-rich water toward the surface.

Accepted Answer

Upwelling

Question 12

Which biome would have the lowest net primary production?

Accepted Answer

Desert

Question 13

Where rivers flow into the ocean, mixing fresh water with saltwater, brackish ecosystems occur which are called

Accepted Answer

estuaries.

Question 14

Ecologists use similarities between ecosystems to classify them into broad categories called

Accepted Answer

biomes.

Question 15

You have many species of bacteria living in your gut that help you with digestion. This is best defined as commensulism

Accepted Answer

False

Question 16

What type of graph is this?

Accepted Answer

climatograph

Question 17

Most trees in tropical dry forests are ____________________, which means they lose their leaves and stop photosynthesis

Accepted Answer

Deciduous

Question 18

Communities that are powered by the sun depend on chemosynthesis for their energy

Accepted Answer

False

Question 19

The open ocean contains over 90% of the ocean's water.

Accepted Answer

True

Question 20

Which statement about the littoral zone in a lake or pond is true?

Accepted Answer

Itis rich in invertebrates.

Question 21

An organism’s ____________________ describes its use of resources and functional role in a community.

Accepted Answer

Niche

Question 22

Under water, photosynthesis by aquatic plants and phytoplankton is mostly limited by the amount of oxygen available.

Accepted Answer

False

Question 23

Marshes, swamps, and bogs are examples of

Accepted Answer

freshwaterwetlands.

Question 24

Animals gathering around a water hole and establishing hierarchies of access to the water is an example of competition

Accepted Answer

True

Question 25

In the history of the world, how many mass extinctions have occurred?

Accepted Answer

5

Question 26

In the years immediately after a fire, a forest will experience

Accepted Answer

secondary succession.

Question 27

In a mass extinction, the rate of extinction exceeds

Accepted Answer

the rate of background extinction.

Question 28

In temperate rain forests, trees like cedars and spruces, which do not lose their leaves at any time of year, are called

Accepted Answer

coniferous.

Question 29

Climate describes the average conditions, including temperature and precipitation, over long periods in a given area.

Accepted Answer

True

Question 30

The twenty varieties of heirloom tomatoes available at your local farmers’ market are the result of ____________

Accepted Answer

Artificial Selection

Question 31

In which ocean zones do crabs, mussels, anemone, barnacles, and sea stars live?

Accepted Answer

intertidal

Question 32

Rivers and streams are types of standing freshwater ecosystems.

Accepted Answer

False

Question 33

A species with a restricted tolerance for environmental conditions is

Accepted Answer

a specialist.

Question 34

Criteria such as salinity, depth, and whether the water is flowing or standing are used by scientists to

Accepted Answer

classifyaquatic ecosystems.

Question 35

A species introduced to a new environment without limiting factors could become ____________________.

Accepted Answer

Invasive

Ecology and Biomes Env. Science

Questions 35

Ecology and Biomes Env. Science

Questions 35