Ecology and the environment - The organism in the environment

Question 1

What does population mean

Answer 1

The number of individuals of a species living within a specific area

Question 2

What does the term community mean

Answer 2

A community is two or more populations of organisms

Question 3

What does the term habitat mean

Answer 3

the place where an organism lives

Question 4

What does the term ecosystem mean

Answer 4

the interaction of two or more populations of organisms in their environment

Question 5

practical: investigate the population size of an organism in two different areas using quadrats

Answer 5

https://igcse-biology-2017.blogspot.com/2017/06/42-practical-investigate-population.html

Question 6

What does the term biodiversity mean

Answer 6

A measure of the variety of living organisms within a particular habitat, ecosystem, biome, or all over Earth

Question 7

practical: investigate the distribution of organisms in their habitats and measure biodiversity using quadrats

Answer 7

https://igcse-biology-2017.blogspot.com/2017/06/44b-practical-investigate-distribution.html

Question 8

How do biotic and abiotic factors affect the populations size and distribution of organisms

Answer 8

Biotic factors, such as interspecific competition, means that only the better-suited species will live in an area because they will out-compete other, less-adapted species.

when the conditions are ideal then organisms can grow and reproduce successfully