Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CCEA GCSE Biology > Fieldwork & Competition > Flashcards

Fieldwork & Competition Flashcards

You may prefer our related Brainscape-certified flashcards:
GCSE Religious Studies - Edexcel Route A flashcards GCSE Religious Studies - Eduqas Route A flashcards AP® Biology flashcards GCSE Geography - AQA flashcards Biology 101 flashcards GCSE Religious Studies - Edexcel Route B flashcards GCSE Religious Studies - Eduqas Route B flashcards
1
Q

Anemometer

1 mark

A

A device for measuring wind speed.

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

Distribution

1 mark

A

The way in which something is spread out.

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

Ecosystem

3 marks

A

An area where a community of animals, plants and microorganisms - live together within a habitat

  • along with a range of environmental factors they are affected by.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

pH

4 marks

A

Scale of acidity or alkalinity.

A pH (power of hydrogen) value;

  • Below 7 - acidic
  • Above 7 - alkaline
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Predator

1 mark

A

Animal that hunts and kills another animal.

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

Prey

1 mark

A

Animal that is hunted and killed by another for food.

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

Quadrat

3 marks

A

Square frame of known area used for sampling the abundance + distribution of slow or non-moving organisms.

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

Biodiversity

1 mark

A

Measure of the number of different species living in an area.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Population

1 mark

A

Number of organisms of the same species living in an area.

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

Habitat

1 mark

A

Where a population lives.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Environment

3 marks

A

Organism’s surroundings.

Contains factors that influence the organism.

Factors can be divided into abiotic + biotic factors.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Abiotic

1 mark

A

Non-living factors.

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

Biotic

1 mark

A

Living factors.

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

Community

1 mark

A

Several populations of different species living in habitats close together.

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

It is important that sampling methods are:

2 marks

A
  • Reliable

- Representative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Sampling methods;
Importance of a Reliable Sample

(2 marks)

A

Large sample needs to be obtained.

E.g 20 small sections should be sampled if the area is large.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Sampling methods;
Importance of a Representative Sample

(2 marks)

A

Needs to be representative of the entire area being investigated.

Should take place randomly across the larger area, not just concentrated in one small part.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The distribution of organisms in a habitat may be affected by…?

(2 marks)

A

Physical factors

E.g - Temperature and light.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is used while investigating the number of organisms under time constraints?

(2 marks)

A

Small reliable + respresentative samples

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Collecting data depends on

1 mark

A

Organism sampled

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What sampling method can be used if the organism moves slowly or not at all?

(1 mark)

A

Quadrat (square frame)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Organisms found inside a Quadrat can be

2 marks

A

Counted or their percentage cover estimated.

23
Q

Percentage Cover

3 marks

A

Percentage of the quadrat covered by each species.

  • usually rounded up to nearest 10%
  • PC under 1-5% is rounded down to 1%
24
Q

Once data for all the quadrats has been collected - what is the next step?

(1 mark)

A

An average for each species can be calculated.

  • gives an idea of the percentage cover of that organism across the entire area being investigated
25
Q

How can the average of each species (collected from quadrat data) be useful?

(1 mark)

A

Gives an idea of the percentage cover of that organism across the entire area being investigated.

26
Q

What can an organisms surroundings (abiotic + biotic factors) influence?

(1 mark)

A

It’s distributions.

27
Q

Abiotic (non-living) factors

5 marks

A
  • Wind speed
  • Water/soil moisture levels
  • pH levels
  • Light
  • Temperature
28
Q

Abiotic factors;

Wind Speed

(3 marks)

A
  • Measured with an anemometer.

- Affects rate of water loss by plants; therefore affects their survival rates in exposed areas.

29
Q

Abiotic factors;

Water/soil moisture levels

(6 marks)

A
  • Measured by finding mass of a soil sample, drying the sample in an oven + reweighing.
  • Difference in mass gives an indication of the percentage soil moisture.
  • Affects survival + therefore distribution of plants + animals.
30
Q

Abiotic factors;

pH levels

(5 marks)

A
  • Measured using a pH probe.
  • Affects survival + therefore distribution of plants.
  • Most plants prefer neutral conditions but some will only grow in acidic or alkaline conditions.
31
Q

Abiotic factors;

Light

(4 marks)

A
  • Measured using a light metre.
  • Affects survival + therefore distribution of plants.
  • All plants need light to Photosynthesise but some can survive with less than others.
32
Q

Abiotic factors;

Temperature

(3 marks)

A
  • Measured with a thermometer.

- Affects the rate of cell reactions like Photosynthesis + Diffusion.

33
Q

Biotic (living) factors

1 mark

A
  • Other plants + animals can affect the distribution of an organism.
34
Q

More difficult factors to measure

1 mark

A

Biotic Factors

35
Q

Examples of how other plants + animals can affect the distribution of an organism.

(3 marks)

A
  • E.g Effect of a predator on its prey - if predator numbers are high, prey numbers will decrease.
  • E.g 2 Competition for food - not enough food means the death of an organism can occur.
36
Q

Competition between animals is usually for

4 marks

A
  • Food
  • Water
  • Territory
  • Mates
37
Q

Competition between plants is usually for

4 marks

A
  • Light
  • Water
  • Minerals
  • Space
38
Q

What can competition affect in plants + animals?

1 mark

A

Population growth

39
Q

What have organisms adapted to?

2 marks

A

Their individual environment

+ to competition for resources.

40
Q

What can humans influence?

1 mark

A

Normal balance of an ecosystem.

41
Q

Grey squirrels

10 marks

A

Not native to UK; introduced from North America.

Population outweighs the red squirrels in some areas.

Eats wider range of food; more needed to survive - can survive in mixed woodland.

Carries a disease fatal to red squirrels - does not affect grey.

Larger squirrels.

Where seeds are small - struggle to obtain enough food.

42
Q

Where were Grey Squirrels introduced from?

1 mark

A

North America

43
Q

What squirrels population outweighs the other in areas?

1 mark

A

Grey outweighs the red.

44
Q

Which squirrel eats a wider range of food but needs more to survive?

(1 mark)

A

Grey Squirrel

45
Q

Which squirrel survive in mixed woodland?

1 mark

A

Grey Squirrel

46
Q

Which squirrel carries a disease fatal to the other?

2 marks

A

Grey squirrels carry a disease fatal to the red squirrels - it does not affect them.

47
Q

Which squirrels are larger?

1 mark

A

Grey squirrel

48
Q

Where seeds are small grey squirrels struggle to obtain enough of this?

(1 mark)

A

Food

49
Q

Less of these squirrels in areas

1 mark

A

Red squirrels

50
Q

What can the grey squirrel do that the red cannot?

1 mark

A

Survive in areas of mixed woodland.

51
Q

What is fatal to the red squirrel but not the grey?

1 mark

A

Disease carried by grey squirrel.

52
Q

Which squirrel dominates in areas where seeds are small?

1 mark

A

Red squirrel

53
Q

Which squirrel needs less food?

1 mark

A

Red squirrel

54
Q

Example of a type of forest where seeds are small

1 mark

A

Conifer forests

CCEA GCSE Biology (33 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions