Science Test

Question 1

What does Biotic mean and what are some examples?

Answer 1

All living organisms/things in an ecosystem (plant, animal, fungi)

Question 2

What does Abiotic mean and what are some examples?

Answer 2

non living things/organisms in an ecosystem (sunlight, water, soil)

Question 3

What is Ecology?

Answer 3

Study on how living things interact with each other and their environment.

Question 4

What are Ecosystems?

Answer 4

Communities of living things interacting with each other and their physical environment

Question 5

What are the basic needs of living organisms?

Answer 5

• Water
• Energy
• Oxygen
• Suitable living conditions
• Interactions (Symbiosis)

Question 6

What is Mutualism and some examples?

Answer 6

The relationship in which both species are mutually benefited (oxpecker)

Question 7

What is Parasitism and some examples?

Answer 7

The relationship between two species in which one organism is benefited at the expense of the other

Question 8

What is Commensalism and what are some examples?

Answer 8

Type of symbiotic relationship between different species of organisms which one species benefits from the relationship while the other is not harmed, but does not benefit from the relationship (ex. small birds and grazing herbivores)

Question 9

What are Producers

Answer 9

Speicies that create their own food

Question 10

What are Consumers?

Answer 10

An organism that feeds off of other organisms to maintain its energy

Question 11

What are Decomposers?

Answer 11

Organisms that decompose leftover food to feed themselves

Question 12

Why are producers, consumers, and decomposers important to an ecosystem?

Answer 12

they all work to create a balance

Question 13

What are the three main cycles of ecosystems?

Answer 13

• nitrogen cycle
• water cycle
• carbon cycle

Question 14

describe the nitrogen cycle

Answer 14

1. Nitrogen fixation
2. nitrification
3. dentrifications
4. decay
5. putrefaction

Question 15

describe the carbon cycle

Answer 15

the process that move barbon between plants, animals, and microbes and the atmosphere

Question 16

describe the water cycle

Answer 16

Liquid water evaporates into water vapor, condenses to form clouds and precipitates back to earth in the form of rain or snow

Question 17

what are Competition and Succession?

Question 18

What is competition in regard to ecosystems and what do organisms compete for?

Answer 18

Competition will occur between organisms in an ecosystem when their niches overlap, they both try to use the same resource and the resource is in short supply.
Animals compete for food, water and space to live. Plants compete for light, water, minerals and root space.

Question 19

What is the definition of a biome?

Answer 19

an area classified according to the species that live in that location.

Question 20

Photosynthesis + Cellular Respiration: what is it and what is the process. – Word equations

Question 21

What is Primary Succession?

Answer 21

Primary succession happens when a new patch of land is created or exposed for the first time

Question 22

What is secondary succession?

Answer 22

when a climax community or intermediate community is impacted by a disturbance.

Question 23

What is the difference between primary and secondary succession?

Answer 23

In primary succession, a newly exposed rock is colonized by living things for the first time. While, Secondary succession is when an area which occupied by living things is disturbed or disrupted.