Biology Topic 7 - 1/2

Question 1

Define Habitat

Answer 1

Where an organism lives

Question 2

Define Population

Answer 2

All the organisms of one species living in one habitat

Question 3

Define Community

Answer 3

The populations of different species living in one habitat

Question 4

Define Abiotic factors

Answer 4

Non living factors of the environment

Question 5

What are 7 examples of Abiotic factors

Answer 5

Moisture level
light intensity
temperature
CO2 levels
O2 levels
soil pH
Wind intensity

Question 6

Define Biotic factors

Answer 6

Living factors of the environment

Question 7

What are 5 examples of Biotic Factors

Answer 7

New predators
Competition
Pathogens
Food
Water

Question 8

What 7 things do organisms compete for

Answer 8

Resources
food
water
minerals
light
territory
mates

Question 9

Define Interdependance

Answer 9

When species depend on each other for things such as food, shelter and seed dispersal

Question 10

What is a knock on Effect

Answer 10

Any change in any environment can have major effects

Question 11

What affect can a change in Abiotic factors have

Answer 11

Affects the population size of organisms

Question 12

What affect can a change in Biotic factors have

Answer 12

Affects the population size of organisms which has a knock on effect due to interdependance

Question 13

What are 3 types of adaptations

Answer 13

Structural - features of body
Behavioural - behaviour
Functional - inside organism body

Question 14

Define Extremorphiles

Answer 14

Organisms that are adapted to live in extreme conditions

Question 15

Define Producer

Answer 15

Produces their own food using energy from the sun

Question 16

Define Primary Consumer

Answer 16

Organisms that feed on primary producers

Question 17

Define Secondary Consumer

Answer 17

Organism that feed on primary consumers

Question 18

Define Tertiary Consumer

Answer 18

Organisms that eat primary and secondary consumers

Question 19

What do quadrats do

Answer 19

Quadrats is a square frame which help calculate the distribution of Biotic factors like plants

Question 20

What are the steps of using a Quadrat

Answer 20

1. Calculate the area of the whole field
2. Place a 1m squared Quadrat on ground at random points
3. Count all organisms within the Quadrat
4. Place Quadrat at a few other places and calculate the mean to find how many quadrats per square metre

Question 21

What do Transects do

Answer 21

Help find out the distribution of organisms across an area and effect on abiotic factors

Question 22

What are the steps of finding Transect

Answer 22

1. Mark out with a tape the area you want to study
2. Collect data along the line by placing quadrats at regular intervals