Lecture 4

Question 1

Ecology is

Answer 1

A branch of the biological science that studies the interactions between an organism and its environment

Question 2

What are the ecology levels of organization?

Answer 2

Organisms 
Communities
Ecosystems
Biomes
Biosphere

Question 3

What are the levels of Organization

Answer 3

molecules
protoplasm
cells
tissues
organs
organisms
populations
communities
ecosystems
biomes
biosphere Earth
solar systems
galaxies

Question 4

What is a biosphere and what does it contain

Answer 4

It is a closed system with one input of energy which comes from the sun,
It contains the Earths atmosphere, lithosphere and hydrosphere

Question 5

What is a biomes?

Answer 5

The terrestrial part of the biosphere that is divided

Question 6

How are different biomes distinguished from each other?

Answer 6

By their climate, soils and the species they support

Question 7

What defines most biomes

Answer 7

Moisture and temperature

Question 8

In Winnipeg we live near __ of the __ Biomes

Answer 8

3 of the 11

Question 9

What are Aquatic life zones?

Answer 9

They are like a biome but in the ocean

Question 10

How are Aquatic life zones defined

Answer 10

by temperature, life an nutrients

Question 11

What are the richest regions of aquatic life zones ?

Answer 11

The Estuaries

Question 12

What is an Estuaries?

Answer 12

The places where rivers dumps all its nutrients into an ocean and the continental self is fairly shallow

Question 13

What comes from Estuaries?

Answer 13

Sea food

Question 14

What are the two parts to every ecosystem

Answer 14

a) Biotic/Living: all the species/organisms in the ecosystems
b) Abiotic/nonliving: The physical, chemical, range of tolerance

Question 15

What affects ecosystems?

Answer 15

a) Food systems
b) Predation
c) Competition between species

Question 16

Habitats are

Answer 16

where a species lives

Question 17

Niches are

Answer 17

where a species is and what it does

Question 18

True or false; species can have the same niche

Answer 18

False

Question 19

What is a generalized niches?

Answer 19

Are organisms that can live anywhere

Question 20

What are specialized niches?

Answer 20

Organisms that live in a specific are and eat very specific things

Question 21

Humans can live without __ species of plant, __ species of animals and __ mineral(s)

Answer 21

3, 3, 1

Question 22

What are two things that move throughout a food chain

Answer 22

Energy and nutrients

Question 23

Producers can

Answer 23

convert sunlight into other biological forms of energy

Question 24

Consumers take

Answer 24

energy from one level to the next level by consuming

Question 25

Primary consumers eat ..

Answer 25

the producers

Question 26

Secondary consumers eat ..

Answer 26

Primary consumers

Question 27

Decomposers do what

Answer 27

decompose organisms back into the earth

Question 28

Omnivores are

Answer 28

consumers that consumer both plants and meat

Question 29

Herbivores are

Answer 29

consumers of only plants

Question 30

Carnivores are

Answer 30

consumers of only meat