Unit 7: Ecology

Question 1

What size is the earth (Small, Medium or Large)

Answer 1

Medium-Sized

Question 2

How far is the Earth from the Sun

Answer 2

150 000 000 km

Question 3

What is the Atmosphere?

Answer 3

The layers of gases around the earth

Question 4

What gases is the atmosphere made out of? Include percentages

Answer 4

78% N (nitrogen)
21% O (oxygen)
1% Ar (argon), Water Vapor, Carbon Dioxide & Others

Question 5

Why is the atmosphere essential for life on Earth

Answer 5

• provides insulation that moderates average
• blocks most ultraviolet radiation

Question 6

What would the average Earth temperature be without the atmosphere

Answer 6

It would go from 15°C to -18°C

Question 7

Lithosphere

Answer 7

Solid rocky layer, made the rocks and minerals that make up mountains, ocean floors, ect;

Question 8

Hydrosphere

Answer 8

All the water that is above, below or on the surface

Question 9

Biosphere

Answer 9

The area was in the atmosphere where life can exist. It is Relatively thin

Question 10

Ecology

Answer 10

The study of living and non-living organisms on earth

Question 11

Biotic

Answer 11

Any living organism, their remains, their waste and products

Question 12

Abiotic

Answer 12

Any non-living organism

Question 13

Habitat

Answer 13

The place an organism lives

Question 14

Niche

Answer 14

The role or job that an organism does in the ecosystem

Question 15

Community

Answer 15

Multiple different species in different populations

Question 16

Ecosystem

Answer 16

All the living organisms sharing a specific region

Question 17

What’s the difference between a population, a community and an ecosystem

Answer 17

A population is one species in 1 habitat

A community is different species in 1 habitat

An ecosystem is different species in different habitats