B16 - Adaptations, Interdependence, And Competition Flashcards Preview

AQA GCSE Biology > B16 - Adaptations, Interdependence, And Competition > Flashcards

Flashcards in B16 - Adaptations, Interdependence, And Competition Deck (23)
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1
Q

What do plants need to survive? (8)

A
  • Light
  • CO2
  • Water
  • Minerals
  • Correct pH of the soil
  • Correct temperature
  • Correct humidity
  • Space
2
Q

What do animals need to survive? (6)

A
  • Space
  • Food
  • Water
  • Temperature
  • Oxygen
  • Mate m/f
3
Q

Adaptations of dandelions? (5)

A
  • Light fluffy parachutes on seeds to help dispersal and compete very successfully
  • Deep taproot so it is hard to remove
  • Regenerate very quickly
  • Leaves aref close to the ground so it is hard to be eaten by an animal or mowed by a person
  • Long flowering period so ensure fertilisation?
4
Q

Why do plants spread their seeds?

A

So that the parent plant doesn’t compete with the seedlings for Light, space, water and mineral ions.

5
Q

D. Community?

A

Populations of different species of animal, plants, fungi, Protista, bacteria and archaea that are all interdependent on a habitat.

6
Q

D. Ecosystem?

A

Interaction of a community of living organisms with the non living (abiotic) parts of their environment.

7
Q

Within any community, the different animals and plants are often…

A

Interdependent

8
Q

What does interdependence mean?

A

When, in a community, each species depends on another species for food, pollination, shelter, seed dispersal etc. If one species is removed, the whole community is affected.

9
Q

What is a stable community?

A

Where all the species and environmental factors are in balance so that population sizes stay roughly the same.

10
Q

3 Examples of interactions between plants and animals in an ecosystem?

A
  • Animals eat plants
  • Animals pollinate plants
  • Animals spread seeds through droppings
11
Q

Abiotic factors affecting communities? (7)

A
  • Light intensity
  • Temperature
  • Moisture levels
  • Soil pH and mineral content
  • Wind intensity and direction
  • Carbon dioxide levels for plants
  • Availability of oxygen for animals and aquatic animals
12
Q

Biotic factors affecting communities? (4)

A
  • availability of food
  • new predators arriving
  • new pathogens
  • new competitors
13
Q

D. Abiotic?

A

non living

14
Q

D. Quadrat?

A

a sample area

15
Q

What do animals compete for? (3)

A

food, territory and mates

16
Q

What do plants compete for? (4)

A

light, space, water and mineral ions

17
Q

Plants and animals both have adaptations to make them good….

A

competitors

18
Q

D. Structural (physical) adaptations?

A

Adaptations you can see (inside and out) eg. shape/colour

19
Q

D. Functional adaptations?

A

Adaptations of the body at a cellular level eg.metabolism

20
Q

D. Behavioural adaptations?

A

How animals act eg. migration

21
Q

D. Extremophile?

A

Organisms that survive and reproduce in the most difficult (extreme) conditions/environments with extreme pressure, temperature or salt. eg. water bears

22
Q

Name 2 adaptations that an animal living in a hot place may have

A
  • Kidneys produce very concentrated urine so they waste very little water
  • Many have a very large SA:V ratio enabling them to keep cool
23
Q

Adaptations of plants to prevent water loss?

A

Thick waxy cuticle