Biology Nat 5

Question 1

Climate

Answer 1

The usual range of tempature/ rainfall

Question 2

Species

Answer 2

Organisms of one type that can interbreed to produce fertile offspring

Question 3

Ecosystem

Answer 3

A collection of habitats and interbreeding populations

Question 4

PANiNA

Answer 4

Protein ammonium nitrites to nitrates

Question 5

Competition

Answer 5

When organisms require the same resources find that those resources are limited

Question 6

allele

Answer 6

One particular variation of a gene

Question 7

Mutation

Answer 7

Any random change in an organisms DNA

Question 8

Mutagenic agent

Answer 8

Anything that causes a mutation eg radiation tempature and mustard gas

Question 9

Natural selection

Answer 9

When selective pressures select useful adaptations so that organisms can live to produce fertile offspring

Question 10

Biodiversity

Answer 10

The variety of living things in an ecosystem

Question 11

Abiotic

Answer 11

Non living

Question 12

Biotic

Answer 12

Living

Question 13

Fauna

Answer 13

Animals

Question 14

Flora

Answer 14

Plants

Question 15

Predator

Answer 15

An animal which hunts and kills animals for food

Question 16

Prey

Answer 16

The animal which is hinted and killed by a predator

Question 17

Habitats

Answer 17

The place where an organism lives

Question 18

Population

Answer 18

All of the organisms of one species in an area

Question 19

Community

Answer 19

All the organisms of all species in an area

Question 20

Niche

Answer 20

The role an organism plays in the environment

Question 21

Biome

Answer 21

A collection of ecosystems all within the same general climate

Question 22

Competition

Answer 22

Happens when organisms requiring the same resources find that those resources are limited

Question 23

INITRAspecific

Answer 23

More fierce between members of same species

Question 24

INTERspecific

Answer 24

Less fierce between members of different species

Question 25

How to work out a percentage

Answer 25

Result
_____________ X 100

Total

Question 26

How to work out percentage change

Answer 26

Change
______________ X 100

Start

Question 27

How to increase food yield

Answer 27

Monocultures of food crops
Intensive farming
Developing GM crops

Question 28

Sampling techniques

Answer 28

What you use
Make sure no error
Reliability (do it more than once)
Source of error

Question 29

Food webs

Answer 29

A more complex version of a food chain

Question 30

How to average

Answer 30

Total of numbers
_______________________

           Number of numbers

Question 31

Bioaccumulation

Answer 31

The build up of pesticides in an organisms body over time

Question 32

Biological control

Answer 32

An alternative to using chemicals on crops, when a natural predator is real eased to kill the pest EG ladybird to greenfly

Question 33

Isolation barrier

Answer 33

A barrier which stops organisms interbreeding, can be ecological geographical or reproductive

Question 34

What do fertilisers do

Answer 34

Replace lost nitrogen to soil

Question 35

Bacteria returns ………………

Answer 35

Lost nitrogen to the soil

Question 36

2 examples of nitrate fertilisers

Answer 36

Compost , manure

Question 37

Farmers can grow nitrogen fixing crops, name 2 examples

Answer 37

Clover , peas