Ecosystems Flashcards

1
Q

Where can life be found? And what are their scientific names?

A
  1. Water - hydrosphere
  2. Land - lithosphere
  3. Air - atmosphere
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Anywhere where life can be found is called the…….?

A

Biosphere

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

What are the 6 abiotic factors?

A
  1. Light
  2. Water
  3. Air
  4. Climate
  5. Soil
  6. Physiographic factors
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Name three reasons why light is important:

A
  • Main source of energy comes from the Sun
  • photosynthesis (light energy converts into glucose and oxygen)
  • Cellular respiration (glucose and oxygen used)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Name three reasons why water is important:

A
  • Needed for chemical reactions in organisms (digesting our food needs water)
  • needed for photosynthesis which supports food chains
  • it is a habitat for some plants and animals
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Name the four types of air.

what percentage it takes up in the air? and what is it used for?

A
  1. Oxygen
    - 20% of air
    - Cellular respiration allows energy to be processed for life processes.
  2. Carbon dioxide
    - 0.04% of air
    - plants use it and water to make glucose and oxygen during photosynthesis
  3. Nitrogen
    - 78% of air
    - bacteria converts it into usable form for plants to make protein
  4. Water vapour
    - amount varies
    - clouds, mist and fog are caused by water vapour in air
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the climate influence?

A

Influences the type of plants and animals that live in that area.

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

What three things does climate include?

A
  1. Temperature
  2. Wind
  3. Rain
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Temperature -

A

Organisms special adaptations to suit conditions.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Wind (3 things) -

A
  • movement of air caused by temperature differences
  • A fixed rate of evaporation affects of availability of water
  • vital for seed dispersal and pollination
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Rain (2 things) -

A
  • has the greatest influence on diversity and distribution of organisms.
  • combination of rain and temperature leads to different climatic conditions
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the four combinations of climatic conditions.

A

Hot + dry
Hot + wet
Cold + wet
Cold + dry

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Soil and humus:

What is the meaning of loam?
2

A
  • combination of different types of soil

- usually contains humus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Soil and humus:

What is the meaning of humus?

A

Organic matter that forms when remains of dead plants and animals breakdown

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Soil and humus:

What are the factors contribute to soil quality?

A
  • water content
  • pH
  • earthworm smalls and dung beetles:
    • Aerate soil
    • return nutrients to soil
    • depend on soil for food, protection and shelter
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Physiographic factors:

What are the three physical characteristics of land?

A
  • slope
  • aspect
  • altitude
17
Q

Physiographic factors:

Slope -

Flat terrain -

Cliff -

If their angle is higher what will the slope be?

A

= angle of the ground relative to the horizontal

= No slope

= vertical slope

Steeper

18
Q

Physiographic factors:

What is the aspect

A

The direction the slope faces

19
Q

Physiographic factors:

Are north facing slopes (Northern aspect) warmer and dryer or cooler and wetter

A

Warmer and drier

20
Q

Physiographic factors:

If the north facing slopes are warmer and drier what will the southern facing (Southern aspect) slopes be?

A

Cooler and wetter

21
Q

Physiographic factors:

What is altitude?

A

The height above sea level