Chapter 4

Question 0

2:

Go back to table 1 in section 2.5 of Chapter 2, which lists the characteristics of vertebrates. For each class, name one characteristic that helps the vertebrates survive.

Answer 0

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Question 1

1. Organisms have adaptions that help them survive in their environments. Describe how each of the following adaptions helps the plants survive.

Answer 1

• Dandelions have London taproots.
• Arctic lupines have seeds that can wait for centuries before they sprout.
• Lodge pole pine cones open only when there is enough heat.

Question 2

Which of the following are structures, and which are behaviours?

Answer 2

• waterproof wings
• eating berries
• night vision
• avoiding traps

Question 3

Explain why tiger salamander, the viceroy butterfly,and the Vancouver island marmot are endangered species. Are there any common reasons?

Answer 3

No there are no common reasons

Question 4

5. Caribou migrate across the tundra every year. In some areas of the tundra,pipelines have been built to carry oil. These pipelines are barriers to the annual migration of the caribou. Explain how the caribous behaviour must adapt to survive.

Answer 4

The caribous must adapt for the caribou to survive so the caribou should eat more food