food chain

Question 1

is the flow of energy through living things within an ecosystem

Answer 1

energy flow

Question 2

the amount of energy that moves
through a food chain

Answer 2

energy flow

Question 3

● Shows the sequence of how energy is transferred from one organism to another.
● Feeding relationship that exists among organisms

Answer 3

Food chain

Question 4

● is a step in nutritive series of an ecosystem.
● Refers to each step in the transfer of energy and matter in a community.

Answer 4

trophic level

Question 5

Can manufacture their own food

Answer 5

producers or autotroph

Question 6

● Obtain energy by eating plants and other animals

Answer 6

consumers or heterotroph

Question 7

● Decomposes, or breaks down, organic material such as the remains of dead organisms

Answer 7

decomposers

Question 8

feeds directly on plants

Answer 8

herbivore

Question 9

eats meat, or the flesh of animals

Answer 9

carnivore

Question 10

eats both plants and animals

Answer 10

omnivore

Question 11

is a system of interlocking and interdependent food chains

Answer 11

food web

Question 12

is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community

Answer 12

food web

Question 13

● Indicates the total amount of energy present in each trophic level.
● Shows the loss of energy from one trophic level to the next.
● Shows clearly that the energy transfer from one trophic level to the next is accompanied by a decrease due to waste and the conversion of potential energy into kinetic energy and heat energy.

Answer 13

energy pyramid

Question 14

From one trophic level to the next how many percent of the energy is passed on?

Answer 14

10%

Question 15

● Organisms in a community survive by either producing or consuming food.
● levels of feeding in a community

Answer 15

trophic levels

Question 16

Primary Consumers

Answer 16

herbivores

Question 17

secondary consumers

Answer 17

carnivores

Question 18

tertiary consumers

Answer 18

omnivores

Question 19

➢ made up of overlapping food chains
➢ Shows feeding connections; arrows illustrates energy transfer.

Answer 19

food webs

Question 20

➢ Producers have most available energy (sun).
➢ Energy is loft as it moves up through the food web;10 % rule- only 10% of the available energy is passed to the next trophic level.
➢ The “lost” energy is used to catch, eat and digest food.

Answer 20

ecological efficiency

Question 21

break down wastes and dead organisms.

Answer 21

decomposers

Question 22

➢ the pathway through which a substance is recycled.
➢any of the natural pathways by which essential elements of living matter are circulated.

Answer 22

Biogeochemical Cycles

Question 23

➢Enters ecosystem by precipitation; may infiltrate the soil ( be absorbed) or run-off into surface water.
➢Return the atmosphere by evaporation or transpiration (the loss of water in plants)

Answer 23

water cycle

Question 24

➢describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere.

Answer 24

carbon-oxygen cycle

Question 25

➢is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems

Answer 25

nitrogen cycle