classification and biodiversity

Question 1

what is classification

Answer 1

organising organisms into groups

Question 2

how are organisms classified

Answer 2

morphological features
and DNA analysis

Question 3

what are morphological features

Answer 3

the physical features of an organism

Question 4

there are 5 kingdoms

Answer 4

animals plants bacteria fungi and single celled organisms

Question 5

what are the major groups of animals

Answer 5

vertebrates humans and reptiles
invertebrates worms and insects

Question 6

what are the major groups of palnts

Answer 6

flowering roses and daffodils and nonflowering ferns and mosses

Question 7

name everything in the binomial system

Answer 7

kingdom
phylum
class
order
family
genus
species

Question 8

The scientific name is important because:

Answer 8

it aids identification and classification
it is the same across the world in any language
it avoids confusion or duplication when talking about the organism in different languages (local or common names).

Question 9

what is an adaptation

Answer 9

An adaptation is a feature that allows a living thing to survive in its habitat. These features could be morphological or behavioural.

Question 10

what are 2 types of behavioural adaptations

Answer 10

hibernation and migration

Question 11

how are small ears and adaptation

Answer 11

they reduce the surface area
heat loss

Question 12

when does competition occur

Answer 12

it will occur between organisms
when resources are in demand

Question 13

do animals compete for

Answer 13

food water territory mates

Question 14

what do plant compete for

Answer 14

light minerals water and space

Question 15

what affects the size of a population

Answer 15

The size of a population may be affected by competition for these resources along with predation, disease and pollution.

Question 16

what are 2 types of competition

Answer 16

intraspecific and interspecific
intra is between organisms of the same species inter is between different species

Question 17

what is biodiversity

Answer 17

it is the variety of living organisms in a specific place]#

Question 18

why is biodiversity important

Answer 18

Biodiversity is important as it provides us with foods, potential foods, industrial materials and new medicines. These are important for the well-being of humans.

Question 19

what is CITES

Answer 19

Convention on International Trade in Endangered Species (CITES). This is an international agreement between governments to protect endangered plants and animals – making sure that trade doesn’t threaten a species’ survival.

Question 20

what is SSSI

Answer 20

Sites of Special Scientific Interest. This describes an area of conservation that contains rare species of animals or plants.

Question 21

what is a captive breeding programme

Answer 21

Captive breeding programmes. These include zoos, aquariums, and safari parks. They breed endangered or threatened animals to create a stable, and healthy population in order to avoid extinction.

Question 22

national parks

Answer 22

National parks. This is an area set aside by a country’s government. National parks are created to preserve the natural environment, and the species within it.

Question 23

seed banks

Answer 23

Seed/sperm banks. Scientists ‘bank’ and ‘save’ seeds to use for replanting in case certain plants die out or are destroyed. Sperm and eggs can also be ‘banked’ in case animal species are threatened with extinction.

Question 24

action plans

Answer 24

Local biodiversity action plans. Targets set in an area which are translated into actions for conserving animal/plant species and their habitats.

Question 25

what is biological control

Answer 25

Biological control involves deliberately introducing a living organism to control the population of another pest species.

Question 26

The biological control agent is usually:

Answer 26

a predator that eats the pest
or bacteria that can destroy the pest.

Question 27

what is an alien species

Answer 27

Alien species are organisms that are accidentally or deliberately introduced into habitats where they do not naturally occur.

Question 28

what is meant by invasive

Answer 28

a species that is not natural to the area and can cause harm to the environment

Question 29

when does a n alien species become invasive

Answer 29

Alien species become invasive when:

they have no predators in the area and the population grows out of control
they compete with native species and cause that species to die out in the area
they prey on native species, reducing their population
they carry a disease that existing native species are not immune to.

Question 30

Advantages of Biological Control

Answer 30

The biological control agent is usually specific to a particular pest.#

It is an alternative to pesticides: it does not kill useful insects such as bees, or cause bioaccumulation

Once the predator is established, there is no need to re-introduce it at a later date.

Question 31

disadvantages of bio cotrol

Answer 31

There is a delay between introducing the predator and a reduction in the pest.

The biological control agent can compete with native species (who are not pests) or become predators to these.

the biological control agent can introduce new diseases.

Question 32

what is a native species

Answer 32

one that naturally occurs in the environment

Question 33

what does a transect show

Answer 33

the frequency of a species in a habitat
the distribution of species in a habitat.

Question 34

capture recapture

Answer 34

Capture-recapture technique is a way of estimating the population size of an animal species.

Animals are captured, marked and released.
A few days later, the animals are recaptured.
The numbers of marked and unmarked animals caught in the traps are recorded.
The population size is estimated using the following equation:
m1 xm2/m1 found in m2

Question 35

what happens when human destroy a habitat

Answer 35

they reduce biodiversity

Question 36

morphological features

Answer 36

are structural adaptations of the organism for eg
colour of fur petal size

Question 37

how do we ensure that the transect test was fair

Answer 37

we carried it out at the same time of each year
they used the sampled the same area

Question 38

suggest why the student have sampled several areas over the whole moorland

Answer 38

to have a more valid representation of the whole moreland

Question 39

how do you sample an area using a transect and quadrat

Answer 39

Use quadrats (1)
* setting up a grid/ use a transect (1)
* Correct reference to generation of random co-ordinates/
placing quadrat at regular intervals (1)
* Count number of plants of each species (1)

Question 40

ow are plants adapted to the environment

Answer 40

thick waxy cuticle on the leaves to prevent to avoid water loss in in dry environments

long roots to reach the water

Question 41

what is the calculation for having an estimate of how many species are present in an area

Answer 41

number of species counted x the whole area/area sampled