Classification and biodiversity (New)

Question 1

What 2 groups do we use to group PLANTS?

Answer 1

flowering and non flowering

Question 2

How do we group ANIMALS into groups?

Answer 2

• Vertebrates - have a backbone

- Invertebrates - do not have a backbone

Question 3

How do you sort a species?

Answer 3

Kingdom, phylum, class, order, family, genus and species

Question 4

Why are scientific names used?

Answer 4

As they are universally understood

Question 5

How do organisms (animals) enable themselves to survive in the wild

Answer 5

• Morphological adaptations (behaviour)

- behavioural adaptations

Question 6

What do ANIMALS compete for?

Answer 6

food , territory and mates

Question 7

What do PLANTS compete for?

Answer 7

• light
• space
• water
• minerals from the soil

Question 8

How is a size of a POPULATION changed?

Answer 8

• Predation
• Pollution
• Disease

Question 9

What is INTERSPECIFIC competition?

Answer 9

competition between different species

Question 10

What is INTRASPECIFIC competition?

Answer 10

competition between members of the same species

Question 11

What is biodiversity?

Answer 11

the variety of different species and numbers of individuals within those species in an area

Question 12

Why is biodiversity important?

Answer 12

as it provides

• food
• industrial materials
• new medicines
• enhanced human well being

Question 13

How can biodiversity and endangered be protected?

Answer 13

• captive breeding programmes
• national parks
• seed/ sperm banks
• local biodiversity action plans.

Question 14

Why are fisherman against legislation of fishing quotas?

Answer 14

• less fish being caught

- killing other fish from increase of ……

Question 14

Why are fisherman against legislation of fishing quotas?

Answer 14

• less fish being caught

- killing other fish from increase of ……

Question 15

How do you use a quadrat?

Answer 15

1. Randomly throw a quadrat.
2. Count the different species and
   the number of each in each
   quadrat.
3. Take a mean number of each
   species of plants from all the
   quadrats collected.
4. Multiply up to estimate how many
   in the whole area

Question 16

Why do you need to collect sufficient data?

Answer 16

To give a more valid estimate of the number of plants in the area

Question 17

What assumptions do you make using the capture/ recapture technique?

Answer 17

• no death
• immigration or emigration
• marking technique does not affect chances of survival.

Question 18

What is an alien species?

Answer 18

An organism introduced into a country in which it does not normally live.

Question 19

What could happens to an alien species?

Answer 19

It could become INVASIVE (An alien organism that has had a negative effect on the
native species)

Question 20

What is biological control?

Answer 20

The use of one organism to control the population size of another
species by eating it. This is often the use of a predator species to control the number of a
prey species that have become pests

Question 21

What are the issues with BILOGICAL CONTROL on pests?

Answer 21

• does not completely eradicate the pest, only bring the population down to acceptable levels
• there is a delay between introducing the predator and a reduction in the pest