Unit Test 1

Question 1

What is ecology?

Answer 1

-The study of living organisms and their interactions with the environment.

Question 2

What is environment?

Answer 2

-Everything that surrounds an organism

Question 3

What do you call a scientist who studies ecology?

Answer 3

-Ecologist

Question 4

What do organisms get from their environment?

Answer 4

-Everything they need to live; nutrients, water oxygen, energy, sunlight, shelter

Question 5

What do all organisms in an environment do?

Answer 5

-Interact-they affect each other

Question 6

What are some examples of interaction?

Answer 6

• Animals eat plants and other animals-(predation)

- Mating

Question 7

Symbiosis

Answer 7

• Relation of two organisms ex. Parasitism

Question 8

What is a population?

Answer 8

-Group of the same kind of organism (plant or animal) living in a certain place

Question 9

What is a community?

Answer 9

-All the populations living in a certain place

Question 10

What is an ecosystem?

Answer 10

• A complex self-regulating system. All the living and nonliving things in an environment and their interactions

Question 11

What size is an ecosystem?

Answer 11

-All the sizes-small as a puddle (drop of water, Large as an ocean)

Question 12

What are the four processes that make ecosystems self-regulating?-extra

Answer 12

• Production of energy
• Transfer of energy
• Breaking down materials
• Recycling

Question 13

What is a habitat?

Answer 13

-Place where an organism lives (condition necessary for the survival of a species)
Ex. food, water, shelter and place to reproduce

Question 14

What is a niche

Answer 14

-An organism’s role in a habitat, the ways it survives

Question 15

What are limiting factors?

Answer 15

-Conditions in the environment that put restrictions on where an organism can live

Question 16

What are limiting factors for animals?

Answer 16

• Temperature
• food
• Water supply

Question 17

What is a range?

Answer 17

• The area where a type of animal or plant is found

- It is determined by limiting factor

Question 18

Why do plants and animals need nitrogen?

Answer 18

• It builds protein
• DNA
• Essential nutrient

Question 19

What allows animals and plants to use nitrogen?-Nitrogen cycle on test-word bank-the one with the cow and tree

Answer 19

• Lighniting

- Nitrifying bacteria-Found on the roots of legumes also found in the soil

Question 20

What is a consumer?

Answer 20

-Organisms that obtain food by eating other organisms

Question 21

What is a producer?

Answer 21

-Organisms that makes their own food ex.green plants

Question 22

What is a scavenger?

Answer 22

-Animal that eats only dead animals ex. Vultures, raccoons, eagles and bears

Question 23

What is a decomposer?

Answer 23

-Organisms that break down the wastes or remains of other organisms
Ex. mushrooms, fungus, maggots

Question 24

What does a primary consumer eat?

Answer 24

-Plants or Producers

Question 25

What does a secondary consumer eat?

Answer 25

- Animals that eat plants | - Primary consumers

Question 26

What does a tertiary consumer eat?

Answer 26

- Animals that eat other animals | - Secondary consumers

Question 27

What is a food chain?

Answer 27

- A way of showing the food relations between groups of organisms - Linear feeding relationships

Question 28

What are some examples of food chains

Answer 28

-seeds----mouse----snake----hawk

Question 29

What is a food web?

Answer 29

- A way of showing how food chains are related interconnected set food chains. - shows the feeding relationships in a community

Question 30

What is an energy pyramid?

Answer 30

-A way of showing how energy moves through a food chain

Question 31

What is always found at the beginning of a food chain?

Answer 31

-plants or producers

Question 32

What is the source of all energy on earth?

Answer 32

-Sun

Question 33

What is a herbivore?

Answer 33

-An organism that eats only plants -A primary consumer, autotroph Ex. mice, rabbits, cows

Question 34

What is an carnivore?

Answer 34

-An organism that eats plants only meat

Question 35

What is an omnivore?

Answer 35

-An organism that eats both plants and animals

Question 36

What are natural resources?

Answer 36

-Materials found in nature that are used by living things

Question 37

What are renewable resources?

Answer 37

-Natural resources that can be replaced in our lifetime | Ex. soil, air, living things

Question 38

What are non-renewable resources?

Answer 38

-Natural resources that cannot be replaced in our lifetime | Ex. oil, coal

Question 39

What is pollution?

Answer 39

-Release of harmful materials into the environment

Question 40

What are endangered species?

Answer 40

-Organisms that are in danger or dying out

Question 41

What are examples of natural disturbances?

Answer 41

- Volcanoes | - Forest fires

Question 42

What are examples of people caused disturbances?

Answer 42

- Pollution - Destroying habits - Overpopulation - Overexploitation

Question 43

How is acid rain formed? Which chemicals are involved?

Answer 43

-Caused by emissions sulphur dioxide and nitrogen oxides that react with water molecules to form acid precipitation

Question 44

Know your soil types?

Answer 44

-Litter-----Topsoil--------Subsoil--------Bedrock

Question 45

Know the Joseph priestley experiment

Answer 45

Review it-Relationship between photosynthesis and cellular respiration

Question 46

If the top predators were competing in an ecosystems and one of them dead. What could the benefits to the surviving top predator be?

Answer 46

-Not as much competition for food, shelter, mates possible better health

Question 47

You should be able to label a food chain | Grass-----Grasshopper-----Spider-----Bird

Answer 47

``` Autotrophe Producer 1st trophic level 2nd trophic level Consumer Heterotrophe Heterotrophe Consumer 3rd trophic level Consumer Top Carnivore Fourth trophic level ```

Question 48

Ecotone

Answer 48

-The boundary between two intersecting (overlap) ecosystems-We usually find more biodiversity.