Topic 1

Question 0

Why is it so important to maintain biological diversity ?

Answer 0

Because areas often become more tolerant to changes in the environment, animals become more resistant to disease and it makes then environment pretty :)

Question 1

Biological diversity?

Answer 1

The number and variety of organism

Question 2

Two sources of variation and why they are important ?

Answer 2

1. Variation within species - same species but differences within them
2. Variation among species - different types of species

Question 3

What does species mean?

Answer 3

Organisms that can reproduce and have fertile young & organisms that have similar adaptations / looks

Question 4

What are the two types of adaptation and explain

Answer 4

1. Structural adaptation - inherited physical adaptations. Hollow bones for birds flying ( I think)
2. Behavioural adaptations - inherited behavioural adaptations. ex. Looking both ways before crossing a road

Question 5

What Is diversity index and how do you calculate it?

Answer 5

It determines the diversity in an area & ne’er of runs divided by the number of species