AH Biology 2.4 - Sex and Behaviour

Parental investment is...

• Costly but increases survival of offspring

• Costly but decreases survival of offspring

• Cheap but increases survival of offspring

• Cheap but decreases survival of offspring

Which form of fertilisation involves sperm and egg nuclei fusing inside the female?

• Internal Fertilisation

• External Fertilisation

Which form of fertilisation involves sperm and egg nuclei fusing outside the female?

• Internal Fertilisation

• External Fertilisation

Which of the following is a benefit of external fertilisation?

• Large numbers of offspring can be produced

• There is limited parental care

• Low survival rate of offspring

• Risk of gametes being predated.

Which of the following is a cost of internal fertilisation?

• High offspring survival rate

• High chance of successful fertilisation

• A mate must be located

• Fewer eggs are required

Which form of selection is commonly referred to as "Quick and Many"?

• r Selection

• K Selection

Which form of selection is commonly referred to as "Slower and Fewer"?

• r Selection

• K Selection

Which form of selection usually results in large numbers of offspring?

• r Selection

• K Selection

Which form of selection usually results in low numbers of offspring?

• r Selection

• K Selection

Which form of selection experiences high levels of offspring mortality?

• r Selection

• K Selection