Survival (GW1)

Question 1

Evolution is about ___.

Answer 1

change

Question 2

Many living things have changed to suit their environment. They have become ____ to suit their conditions. These ___ help them to survive and breed. So the adaptations are passed on to their _____.

Answer 2

Adapted
Adaptations
Offspring

Question 3

Any plant or animals that occur large numbers in a particular must be…..

Answer 3

well adapted to that environment.

Question 4

What must animals do to survive?

Answer 4

Compete with other individuals in its species for things like food and space. It also has to compete with other species around it. Therefore not all plants and animals survive.

Question 5

What happens to organisms with desirable traits and those without desirable traits?

Answer 5

Desirable- most likely to survive and pass on its genes to its offspring
No Desirable- most likely not to survive

Question 6

The scientist Charles Darwin worked out that one pair of could have ___ million descendants after 700- if they all survived.

Answer 6

15

Question 7

Why do some organisms not overpopulate the earth?

Answer 7

Many of the offspring die or are eaten.

Question 8

Name 5 factors that might prevent offspring from surviving in each generation.

Answer 8

• Competition for food
• Predators
• Disease
• Climate
• Drought

Question 9

Which organisms tend to survive?

Answer 9

The fittest, those with better-adapted features. The best-adapted individuals will pass on their characteristics to their offspring. So the next generation will have a larger population of these better-adapted individuals.