Science quiz- 2.1 2.2, 3.1

Question 1

Biotic feature

Answer 1

Any living organism within an ecosystem

Question 2

Abiotic feature

Answer 2

Nonliving parts of an organisms habitat

Question 3

Population

Answer 3

all members of one species living in a particular area

Question 4

Community

Answer 4

all the different populations that live together

Question 5

Ecosystem

Answer 5

a community of living organisms interacting with each other and their non-living environment

Question 6

Limiting factor

Answer 6

enviornmental factor that causes a population to decrease in size

Question 7

Identify levels of organization in an ecosystem from smallest to largest.

Answer 7

Organism, species, population, community, ecosystem, biome, biosphere.

Question 8

Every organism has a role in the movement of ________ through its ecosystem

Answer 8

Every organism has a role in the movement of energy through its ecosystem

Question 9

Producer

Answer 9

organism that makes own food through glucose using energy from the sun in the process of photosynthesis.

Question 10

consumer

Answer 10

obtains energy by feeding on organisms

Question 11

decomposer

Answer 11

breaks down biotic waste and dead organisms, returning nutrients to soil.

Question 12

Food chain

Answer 12

one organism eats another and obtains energy (each level is a “trophic level”)

Question 13

food web

Answer 13

consists of many overlapping food chains

Question 14

energy pyramid

Answer 14

shows the amount of energy that moves from one feeding level to another in a food web.

Question 15

Each level has _____ available to than the level below

Answer 15

Each level has LESS ENERGY available to than the level below (divided by 10)

Question 16

Which model best illustrates the flow of energy and matter an an ecosystem- food chain or food web?

Answer 16

A food web- shows how many different food chains are connected and how energy flows through multiple paths in an ecosystem.

Question 17

Niche

Answer 17

the specific role and position an species has within its ecosystem

Question 18

Interactions

Answer 18

relationships between living organisms

Question 19

what are the two major types of interactions?

Answer 19

Competition and predation

Question 20

Symbiosis

Answer 20

relationship between organisms and different species

Question 21

Commensalism

Answer 21

one species benefits, other is not harmed
ex: cattle egret and cattle

Question 22

Mutualism

Answer 22

both species benefit
ex: humans and gut bacteria

Question 23

Parasitism

Answer 23

one benefits other harmed (parasite causing harm to host)
ex: dogs and ticks

Question 24

Five different types of interactions between organisms….

Answer 24

competition, predation, commensalism, mutualism and parasitism.

Question 25

Where does the energy in an ecosystem come from?

Answer 25

the SUN

Question 26

scavengers

Answer 26

eat remains form dead organisms

Question 27

Primary consumer

Answer 27

first consumer to eat producers. Primary consumers can be herbivores or omnivores.

Question 28

Secondary consumer

Answer 28

eats the primary consumer and can be either carnivore or omnivore.

Question 29

tertiary consumer

Answer 29

eats primary and secondary consumer. They are considered "top" of food chain.

Question 30

Biosphere

Answer 30

the part of Earth where all living things exist, encompassing all life and its interactions with the non-living environment

Question 31

Biome

Answer 31

large geographic area characterized by specific climate, vegetation, and animal life

Question 32

competition

Answer 32

a relationship where organisms, struggle for the same limited resources, such as food, water, or space

Question 33

predation

Answer 33

when one organism (the predator) kills and eats another organism (the prey) for food and nutrients

Question 34

photosythesis

Answer 34

the process where producers use sunlight, water, and carbon dioxide to create their own food, which is sugar (like glucose), and release oxygen

Question 35

energy

Answer 35

the power that fuels all life processes within an ecosystem

Question 36

cellular resperation

Answer 36

how organisms break down food to release energy for cellular processes

Question 37

Quaternary consumer

Answer 37

an animal that occupies the fourth trophic level in a food chain. These organisms are typically carnivores and are often at the top of the food chain

Question 38

host

Answer 38

an organism that provides a habitat and resources for a parasite

Question 39

Sustainable

Answer 39

maintaining a healthy environment where ecosystems and the resources they provide can continue to support life for future generations

Question 40

autotroph

Answer 40

an organism that can produce its own food using light, water, carbon dioxide, or other chemicals

Question 41

heterotroph

Answer 41

an organism that eats other plants or animals for energy and nutrients

Question 42

trophic level

Answer 42

an organism's position in a food chain or food web, based on its feeding habits

Question 43

Know mater vs energy

Answer 43

In an ecosystem, matter is recycled while energy flows through. Matter, such as nutrients, **moves through organisms and the environment in biogeochemical cycles. It is used, released, and reused by different organisms. ** Energy, on the other hand, flows in one direction.