Ecosystems

Question 1

Ecology

Answer 1

study of how organisms interact with their environment and each other

Question 2

Environment

Answer 2

anything and everything in a organisms surroundings

Question 3

ecosystem

Answer 3

a biological community of interacting organisms and their physical environment

Question 4

Abiotic

Answer 4

part of the environment that was never living

Question 5

biotic

Answer 5

part of the environment that was alive or is alive

Question 6

Producer

Answer 6

(AKA autotroph, involved with photosynthesis directly)

organsims capable of making their own food from water, light, and air

Question 7

Herbivore

Answer 7

an organism that eats grass as 90% of its diet

Question 8

Carnivore

Answer 8

organism that eats meat as 90% of its diet

Question 9

Omnivore

Answer 9

organism that eats a mixture of meat and fresh plants

Question 10

Detritus

Answer 10

waste from plants and animals, including dead remains

Question 11

Scavenger

Answer 11

organisms that feed on bodies of larger dead animals

Question 12

Decomposer

Answer 12

organisms that break down organic matter at cellular level

Question 13

Trophic Level

Answer 13

Place in a food chain an organism feeds

Question 14

Detritivores

Answer 14

organisms that feed own bodies of smaller animals

Question 15

Community

Answer 15

All organisms that interact within an ecosystem

Question 16

population

Answer 16

all the members of a certain species within an ecosystem

Question 17

Species

Answer 17

all organisms within an ecosystem that have the same structure and can reproduce with each other

Question 18

Food Web

Answer 18

combination of paths showing various relationships among organisms

Question 19

Food chain

Answer 19

single path of energy through an ecosystem

Question 20

Heterotroph

Answer 20

a consumer

Question 21

Name three things that are biotic and three abiotic

Answer 21

Biotic - Tree, grass, insects

Abiotic - soil, wind, nitrogen

Question 22

What are the three types of consumers?

Answer 22

Herbivore , omnivore, carnivore

Question 23

Whats the difference between community and population?

Answer 23

The difference is that a population is just a single species within a ecosystem while a community is all the living things

Question 24

What are the three types of the relationships between organisms?

Answer 24

Communalism - One species benefits while other isn’t affected EG - barnacles on a whale
Parasitism - One species benefits, other is harmed EG - hookworm in dogs
Mutualism - Both species benefit EG - bees getting nectar from flower

Question 25

biodiversity

Answer 25

refers to the variety and number of different species in an ecosystem

Question 26

What % of energy in food chains is passed on from one level to the next, and what type of energy is it?

Answer 26

10% is passed on, and its heat energy

Question 27

Whats the difference between a food chain and a food web?

Answer 27

The difference is that a food chain shows the transfers of energy through stages while food webs are interconnected food chains

Question 28

Whats the difference between food chain and trophic level?

Answer 28

trophic level refers to the basic energy levels within a food chain

Question 29

What is the trophic level of tertiary consumers?

Answer 29

carnivores, 4th level

Question 30

Biogeochemical cycle

Answer 30

Flow of chemical elements between living things in an ecosystem

Question 31

Describe the carbon cycle

Answer 31

The movement of carbon between biosphere, and the atmosphere and the oceans and gesosphere

Question 32

Describe the nitrogen cycle

Answer 32

movement of nitrogen from air and soil to living things and back.

Question 33

what are the 3 ways plants absorb nitrogen ?

Answer 33

through soil

Question 34

What forms of nitrogen are usable for plants ?

Answer 34

Nitrate, NO3

Question 35

What is bioaccumulation ?

Answer 35

The buildup of toxins after long periods of time

Question 36

What are the effects of introducing a new species into an ecosystem?

Answer 36

the new species will have to compete with others to get food, possibly driving other species into extinction

Question 37

What are some abiotic factors limiting a population?

Answer 37

Competition for food, predators, available food

Question 38

What are some biotic factors limiting a population ?

Answer 38

Temp, sunlight, natural disasters