Topic 1: Biological Diversity and Survival

Question 1

Variation

Answer 1

• Differences in characteristics of organisms based on genetics and environmental factors

Question 2

Biological Diversity

Answer 2

• The number and variety of organisms in an area

Question 3

Why is Biological Diversity Important?

Answer 3

1. Biological Diversity is essential for a species survival
2. Biological Diversity allows many cures for different types of diseases
3. Biological Diversity increase food production

Question 4

Why Should Biological Diversity be Preserved?

Answer 4

1. So food chains are not affected
2. So the population of other species don’t increase or decrease

Question 5

Species

Answer 5

• A group of organisms that share the same characteristics
• These groups will usually interbreed in nature and will produce fertile offsprings

Question 6

Variation Within Species

Answer 6

• The differences between organisms of the same species
  Ex. How a human differs from another human

Question 7

Variation Among Species

Answer 7

• The differences between organisms of different species
  Ex. How a human differs from a horse

Question 8

Speciation

Answer 8

• The process in which organisms of the same species are put into different environments and develop different characteristics
  Ex. Finch birds

Question 9

Structural Adaptation

Answer 9

• An inherited physical adaptation that helps an organism survive in its environment
  Ex. feathers, fur, beaks

Question 10

Behavioral Adaptation

Answer 10

An inherited behavior that allows an organism to survive in its environment
Ex. migration of birds, hibernation, bird warning calls

Question 11

Diversity Index

Answer 11

• A measurement that shows biological diversity in a numerical way
• Compares the diversity of a species in the area with the total number of organisms in the same area

Question 12

Extra

Answer 12

• If an ecosystem faces a dramatic change (climate, pollution, etc.) a species with no diversity will become extinct because every organism is the same
• Although Black Death wiped out most of the population, some people were able to survive because of biological diversity
• Diversity will occur more in tropical areas because the temperature stays the same for most of the year.