Life On Earth

Question 1

What is a

1. herbivores
2. carnivores
3. omnivores

Answer 1

1. Only eats plants
2. Only eats meats
3. Eats both plants and animals

Question 2

What is

1. Primary consumer
2. Secondary/ tertiary consumer

Answer 2

1. Organisms that eat producers to gain energy (herbivores)

2. Animals that eat other animals (carnivores)

Question 3

What is a predator and a prey?

Answer 3

Predator is an animals that EATS other animals

Prey is an animals that is EATEN by animals

Question 4

What is inter-specific competition?

Answer 4

When different species compete for resources they require

Question 5

What is intra-specific competition?

Answer 5

When same species compete for resources they require

Question 6

What is abiotic and biotic affects in the biodiversity?

Answer 6

Abiotic is physical environment influencing on an organism

Biotic is living organisms influencing on an organism

Question 7

What are quadrats used to sample?

Answer 7

Plants and slow moving animals

Question 8

What is photosynthesis?

Answer 8

The growth and repair of plants and help them produce their own food

Question 9

Limiting factors of photosynthesis

Answer 9

Temperature
Light intensity
Carbon dioxide

Question 10

Name two stages of photosynthesis?

Answer 10

Light reaction

Carbon fixation

Question 11

What are the raw material and products in light reaction?

Answer 11

Raw materials are water

Products are NADPH (Hydrogen) and ATP and oxygen diffuses out

Question 12

What are the raw materials and products in carbon fixation?

Answer 12

Raw materials are carbon dioxide, NADPH and ATP (energy)

Products are Glucose

Question 13

What energy concerts into chemical energy in photosynthesis

Answer 13

Light

Question 14

How is energy lost in a good chain

Answer 14

Through faeces
Through movement by consumer
Used in warm blooded animals to keep warm

Question 15

How much energy does each organism lose up the food chain

Answer 15

90%

Question 16

What three chemicals are in fertilisers?

Answer 16

Nitrogen, phosphorus and potassium

Question 17

Name two adaptations in organisms?

Answer 17

Structural and behavioural

Question 18

What is carbon fixation

Answer 18

A series of enzymes controlled reactions

Question 19

What is light reactions?

Answer 19

The light energy from the sun trapped by chlorophyll in the chloroplast

Question 20

Name biotic factors

Answer 20

Competition for resources, disease, food availablity, grazing and predation

Question 21

Name abiotic factors

Answer 21

Light intensity, moisture, pH and temperature

Question 22

What do you measure 
1. Temperature 
2. pH
3. Light intensity
4. Moisture 
With?

Answer 22

1. Thermometer
2. pH meter
3. Light intensity monitor
4. Moisture meter

Question 23

How to minimise error in sampling

Answer 23

Repeat - more reliable
Random - less biased
Robust - you can trust