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Flashcards in Ecology Quiz Deck (18)
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0

Producers release carbon dioxide into the atmosphere during the process of photosynthesis
True or false?

False

1

Primary succession

Occurs in essentially lifeless areas- regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rock left from a retreating glacier.

2

Secondary succession

Occurs in areas where a community that previously existed has been removed; it is typified by smaller scale disturbances that donor eliminate all life and nutrients from the environment

3

Where do plants get nitrogen from?

Soil

4

What do forest fires do to nitrogen content?

Nitrogen fertilizers and forest fires add huge amounts of nitrogen Intihuatana e soil and nearby lakes and rivers.

5

What does water full of nitrogen do?

Causes plants and algae to grow very fast then die all at one when there are too many for the environment to support (carrying capacity)

6

The nitrogen clue incvolves decomposers, producers, and consumers. Which of these organisms converts gaseous nitrogen to usable nitrogen?

Producers

7

Most of earths carbon is restored where?

The ocean

8

What human actions have cases the biggest imbalance in the water cycle?

Indirectly causing glaciers to melt

9

The producers that play a major part in the nitrogen cycle are known as

Legumes

10

Carbon is vital to biotic factors because

It is required in photosynthesis which is the base of many food webs

It is required in respiration which produces cellular energy (ATP)

It makes protein and DNA, which allows cells to function

11

What is true of pioneer species like lichen?

Pioneer species are able to live in low nutrient environments
Pioneer species are unable to outcompete more complex producers

12

Which is not an example of an abiotic, naturally occurring disturbance?

Migrations

13

What is an example of a biotic naturally exciting disturbance

Extinctions

14

What is one difference between primary and secondary succession

Secondary succession begins on soil and primary succession begins on newly exposed surfaces

15

A tropical rain forest may not return to its original climax community after which disturbance?

Volcanic eruption

16

Which of the following events led to a dreck and major shift in the carbon cycle?

The industrial revolution

17

Nitrogen is vital to biotic factors because

Ur makes up proteins and DNA, which allows cell to function