Read sections 15-1 & 15-2

Answer question 3 on page 372 and questions 1-5 on page 377

Yesterday’s Homework:

Daily Quiz 377

Daily Quiz 377

1. Evolution is a theory. This means:

a. Many scientists disagree with it.

b. There is evidence on both sides.

c. It is well-supported and testable.

d. It cannot ever be tested.

Daily Quiz 377

2. When Darwin was young, all of the following were new and exciting scientific ideas except:

a. The Earth is millions of years old.

b. Acquired traits can be passed on.

c. There are many different species in the world.

d. If the population continues to grow unchecked, we will run out of space and food.

Daily Quiz 377

3. What part of Lamarck’s theory of evolution was wrong?

a. Use and disuse of particular organs can make them bigger/stronger or smaller/weaker.

b. These changes can make the organism better adapted to its environment.

c. These changes can be passed on to offspring.

Daily Quiz 377

4. According to Malthus, the human population is limited by all of the following except:

a. warfare

b. predators

c. starvation

d. diseases

Daily Quiz 377

1. Evolution is a theory. This means:

a. Many scientists disagree with it.

b. There is evidence on both sides.

c. It is well-supported and testable.

d. It cannot ever be tested.

Daily Quiz 377

1. Evolution is a theory. This means:

a. Many scientists disagree with it.

b. There is evidence on both sides.

c. It is well-supported and testable.

d. It cannot ever be tested.

Daily Quiz 377

2. When Darwin was young, all of the following were new and exciting scientific ideas except:

a. The Earth is millions of years old.

b. Acquired traits can be passed on.

c. There are many different species in the world.

d. If the population continues to grow unchecked, we will run out of space and food.

Daily Quiz 377

2. When Darwin was young, all of the following were new and exciting scientific ideas except:

a. The Earth is millions of years old.

b. Acquired traits can be passed on.

c. There are many different species in the world.

d. If the population continues to grow unchecked, we will run out of space and food.

Daily Quiz 377

3. What part of Lamarck’s theory of evolution was wrong?

a. Use and disuse of particular organs can make them bigger/stronger or smaller/weaker.

b. These changes can make the organism better adapted to its environment.

c. These changes can be passed on to offspring.

Daily Quiz 377

3. What part of Lamarck’s theory of evolution was wrong?

a. Use and disuse of particular organs can make them bigger/stronger or smaller/weaker.

b. These changes can make the organism better adapted to its environment.

c. These changes can be passed on to offspring.

Daily Quiz 377

4. According to Malthus, the human population is limited by all of the following except:

a. warfare

b. predators

c. starvation

d. diseases

Daily Quiz 377

4. According to Malthus, the human population is limited by all of the following except:

a. warfare

b. predators

c. starvation

d. diseases

Darwin’s Observations

In 1831, at the age of 22, Darwin joined the crew of the H.M.S. Beagle.

Darwin’s Observations

In 1831, at the age of 22, Darwin joined the crew of the H.M.S. Beagle.

Darwin’s Observations

Darwin’s Observations

He saw many more species than he had ever realized existed

Darwin’s Observations

He saw many more species than he had ever realized existed.

The patterns of diversity seemed strange to him

Darwin’s Observations

He saw many more species than he had ever realized existed.

The patterns of diversity seemed strange to him.

Why are there no rabbits in Australia?

Why are there no kangaroos in England?

Darwin’s Observations

He found fossils. Many were completely unlike anything alive today

Darwin’s Observations

He found fossils. Many were completely unlike anything alive today.

Why have so many species disappeared?

Darwin’s Observations

Then he went to the Galapagos Islands…

Darwin’s Observations

Then he went to the Galapagos Islands…

The Galapagos are a cluster of islands very close together but with some very different environments.

Darwin’s Observations

On neighboring islands, Darwin found many closely related species with different adaptations

Darwin’s Observations

On neighboring islands, Darwin found many closely related species with different adaptations.

Darwin’s Observations

Darwin’s Observations

Could all these species have a common ancestor?

Darwin’s Observations

Could all these species have a common ancestor?

.