Biodiversity

Question 1

The more variety there is in genes in a population, the greater the chance of what?

Answer 1

a species will persist or survive

Question 2

How many species have been identified and described?

Answer 2

1.7 million

Question 3

Where is species diversity the highest?

Answer 3

equatorial tropics

Question 4

Where is species diversity the lowest?

Answer 4

polar regions

Question 5

Where is the greatest tree diversity in the US?

Answer 5

southern states

Question 6

Does either East or West US have greater tree diversity?

Answer 6

east

Question 7

Does either east or west US have greater bird diversity?

Answer 7

west

Question 8

What is an Archipelago?

Answer 8

a chain of islands

Question 9

Which archipelago is relatively species poor?

Answer 9

Hawaii

Question 10

These are places with high biodiversity that have been threatened by human activity

Answer 10

Biodiversity hotspots

Question 11

How many places have been designated as biodiversity hotspots on planet earth?

Answer 11

35

Question 12

Name the two biodiversity hotspots in India

Answer 12

1. Eastern Himalayas

2. Western Ghat Mountains

Question 13

Eastern Himalaya Hotspot

Answer 13

a. Northern India, Pakistan, Nepal, and Bhutan
b. Mt. Everest
c. 10,000 plant, 1,000 bird, 300 mammal species
d. Logging, livestock grazing and soil erosion

Question 14

Western Ghat Hotspot

Answer 14

a. western coast of India
b. 5,000 plant, 500 bird, 100 mammal species
c. 179 amphibian, 288 freshwater fish species
d. Clear cutting for tea, coffee and teakplantations

Question 15

When did the first marine invertebrates evolve?

Answer 15

540 million years ago

Question 16

When did vascular plants evolve?

Answer 16

400 million years ago

Question 17

This is the variation or sum of all the genes that come from all the members of a population

Answer 17

genetic diversity