Unit B Sam D Emily S and Emily W

Question 1

What is ecology.

Answer 1

The study of ecosystems

Question 2

Define ecotone

Answer 2

Transition area containing organisms from bordering ecosystems.

Question 3

What is an ecological niche

Answer 3

An organisms role in an ecosystem

Question 4

What is included in a niche

Answer 4

Place in food web, habitat and breeding area

Question 5

Define biome

Answer 5

Large region with specific climate, plants and animals

Question 6

What are Canada’s four terrestrial biomes

Answer 6

Tundra, taiga, deciduous, grassland

Question 7

What are the two aquatic biomes

Answer 7

Freshwater, marine or salt water

Question 8

Factors affecting terrestrial ecosystems

Answer 8

Soil water temp and sunlight

Question 9

What are the four layers of soil

Answer 9

Litter, topsoil, subsoil, bedrock

Question 10

Factors affecting aquatic ecosystems

Answer 10

Chemical environment, temperature and sunlight, water pressure, seasonal variations

Question 11

What is biotic potential

Answer 11

The maximum number of offspring that a species could produce if resources were unlimited

Question 12

Factors that make up biotic potential

Answer 12

Birth potential, capacity for survival, breeding frequency, length of productive life

Question 13

What are limiting factors

Answer 13

Factors in the environment that could prevent organisms from reaching their full biotic potential

Question 14

What is carrying capacity

Answer 14

The maximum number of individuals of a species that can be supported at the time by an ecosystem

Question 15

What are the four factors of limits of tolerance

Answer 15

Law of minimum, law of tolerance, density dependant and independent factors.

Question 16

What is taxonomy

Answer 16

The science of classifying organisms according to their relationships

Question 17

What is binomial nomenclature

Answer 17

A two name method of naming organisms

Question 18

What are the advantages of binomial nomenclature

Answer 18

Gives scientists a universal language

Question 19

What are the levels of classification

Answer 19

Kingdom, phyla, class, order, family, genus, species

Question 20

What are the six kingdoms

Answer 20

Eubacteria, archaebacteria, Protista, fungi, plantae, animalia

Question 21

Define phylogeny

Answer 21

The history of the evolution of a group of organisms

Question 22

What is radio metric dating

Answer 22

A technique used to determine the age of a rock or fossil based on half lives

Question 23

Define endemic

Answer 23

A term used to describe species that are found in one area only

Question 24

What are homologous features

Answer 24

Features with similar structure different functions

Question 25

What are analogous features

Answer 25

Same structure same function different evolutionary origin

Question 26

What are vestigial features

Answer 26

May have once served a function but don’t anymore

Question 27

Examples of inherited traits

Answer 27

Eye colour, hair colour, height

Question 28

Examples of acquired traits

Answer 28

Dancing, dexterity, intelligence

Question 29

Define mutation

Answer 29

A change in the DNA sequence of a chromosome random occurrence.

Question 30

What are the three types of mutation

Answer 30

Harmful, neutral, beneficial