UNIT THREE: Life on earth

Question 1

What is a habitat?

Answer 1

A place where an organism lives.

Question 2

What is an Ecosystem?

Answer 2

All the living and non living components in a habitat

Question 3

What is a species?

Answer 3

A group of organisms capable of interbreeding to produce fertile offspring

Question 4

What is a Population?

Answer 4

The number of one species in a habitat

Question 5

What is a Community?

Answer 5

All things living in a habitat (plants, animals, ect)

Question 6

What is a Niche?

Answer 6

The role an organism plays in its ecosystem

Question 7

What is a biotic factor?

Answer 7

Factors related to living things

Question 8

Give 4 examples of biotic factors?

Answer 8

-Competition
-Grazing
-Predation
-Disease

Question 9

Low grazing means..?

Answer 9

No competition so few dominant grass species

Question 10

High grazing means..?

Answer 10

Reduces competition so more species get space to grow

Question 11

Very high grazing means..?

Answer 11

Everything eaten before it can establish growth

Question 12

Define Inter specific competition

Answer 12

Different species competing for resources

Question 13

Define Intra specific competition

Answer 13

Same species competing for resources

Question 14

Which one is more intense Intra specific competition or inter specific competition?

Answer 14

Intra specific