B17/18Ecology Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What are two factors that species depend on each other for

A

Food, seed dispersal,shelter pollination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is phototropism?

A

Is when a plant moves towards light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is geotrpism

A

A plants response to gravity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is hydrotrpism

A

A plants response to water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are auxins

A

Auxins are hormones that control the growth of plants by promoting cell division. This allows the plant to elongate and bend towards light, water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How does phototropism happen?

A

Auxin molecules congregate to the shaded side of the shoot and promote cell elongation. Since the side farthest away from the sun grows faster the shoot bends towards the sun

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How does geotrpism occur

A

In roots auxins SUPRESS cell elongation and concentrate on the lower side of the root allowing it to bend downwards

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What gas is released during anaerobic decomposition

A

Methane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly