Biology 9 concept 1

Question 1

What are the seven levels of classification? General to specific.

Answer 1

Kingdom, Phylum, Class, Order, Family, Genus, Species.

Question 2

How do we define species?

Answer 2

Physical structre, Reproduction successful, Fertile offspring.

Question 3

Explain how the predator-prey relationships are benificial to the prey.

Answer 3

It is benificail to the prey, because when the predator population is high the prey don’t over populate. It aslo prevents starvation, eliminates the older and weaker organisms.

Question 4

Explain interspecies competition and how resource partitioning limits it.

Answer 4

Interspeices competition happens when 2 or more species need the same resources to survive. Resource partitoning is when similar species can coexist with slightly different niches.

Question 5

What is natural selection?

Answer 5

It is when the environment decides what characteristics are advantagus, and when nature favors one species more than the other.

Question 6

Explain the difference between a secialist and a generalist.

Answer 6

A specialist has a narrow niche which means that it only surves with one role in biological diversity. A generalist has a broad niche which means that it can survive on many roles in biological diversity.

Question 7

Identify an advantage and disadvantage for both broad and narrow niches.

Answer 7

Broad niche - Advantage: can adapt to sudden changes
Disadvantage: Increases interspecies
competition
Narrow niche - Advantage: can live in small areas
Disadvantage: They are over
specialized

Question 8

Give two examples of both continuous and discreate variation.

Answer 8

Continuous - Height and mass

Discreate - Eye and hair colour

Question 9

Explain what “heritable” means.

Answer 9

Heritable means characteristics passed on from generation to generation.

Question 10

What is biological diversity?

Answer 10

It is the vairiaty of life on earth.

Question 11

What are the three types of interdependance? Name one example for each.

Answer 11

Commensalism - Barnicales on whales
Mutualism - Flower and clusia
Parasitism - Tape worms in humans

Question 12

What is variablitity?

Answer 12

Variability is where there is variation in the different genuses of animals or plants.

Question 13

Define ecosystem.

Answer 13

A system that contains the community, population, and species of both biotic and abiotic organism.

Question 14

Define popuation.

Answer 14

When many of the same species live all together in a certain area.

Question 15

Define community.

Answer 15

Population containing 2 or more species that are simialr to eachother.

Question 16

Define Genus.

Answer 16

Genus is the more specific way to say what an animal or plant is.

Question 17

Define species.

Answer 17

A genus that has been broken into different categories.

Question 18

Define kingdom.

Answer 18

kingdom is the most general classification in the triangle. And is the way of saying all life on earth.

Question 19

Define phylum.

Answer 19

Phylum is the second most general classification in the triangle. And is the way of saying animals or plants.

Question 20

Define class.

Answer 20

Class is the third most general classification in the triangle. And is the way of saying animals or plants that are alike in a broad way.

Question 21

Define order.

Answer 21

Order is the middle of the classification triangle. And is composed of families that share a similar characteristic.

Question 22

Define Family.

Answer 22

Family is the third most specific classification in the triangle. And is describing something with simialr characteristics like birds.

Question 23

What is the definition for the three interdependances?

Answer 23

Commensalism - one oragnism benifits while on is not benifiting nor is harmed

Mutualism - When both organisms benift

Parasitism - when one organism is benifiting while one is harmed.

Question 24

What is a niche?

Answer 24

A niche is the biological role of organisms.