mod 3

Question 1

the ability to do work, and it is everywhere

Answer 1

Energy

Question 2

MRS CHEN

Answer 2

Mechanical
Radiant
Sound
Chemical
Heat
Electrical
Nuclear

Question 3

Energy may be sourced from?

Answer 3

Renewable or Non-renewable

Question 4

primary source of energy

Answer 4

sun

Question 5

how many % of the total light striking a leaf surface is used to make food through photosynthesis?

Answer 5

2%

Question 6

energy is obtained by living things in three ways through?

Answer 6

photosynthesis, chemosynthesis, eating/digesting other living or dead organisms by heterotrophs

Question 7

harness radiant energy and convert it to chemical energy in the form of ATPs to be used to synthesize complex organic molecules like glucose

Answer 7

photoautotrophs

Question 8

are the foundation of the every ecosystem on earth; form the base of food chains and food webs, and the energy they capture from light or chemicals sustains all the organisms in the community.

Answer 8

autotrophs

Question 9

are organisms that create their organic food from inorganic chemicals like iron, nitrogen, sulfur, and magnesium and, in turn, supply energy to the rest of the ecosystem

Answer 9

Chemoautotrophs

Question 10

cannot capture light or
chemical energy to make food and thus, mainly rely on autotrophs.

Answer 10

Heterotrophs

Question 11

feeding level often represented in a food chain or food web

Answer 11

trophic level

Question 12

only about ___of net energy production at one trophic level is passed on to the next level because processes reduce energy flow

Answer 12

10%

Question 13

often convert high-quality food sources into new tissue more efficiently than low-quality food sources.

Answer 13

Consumers

Question 14

process large amounts of organic material and return nutrients to the
ecosystem in inorganic form, which is then taken up again by primary producers.

Answer 14

Decomposers

Question 15

trophic pyramids; are graphical representations designed to show relationships between energy and trophic levels in an ecosystem

Answer 15

ecological pyramids

Question 16

important environmental consequence of increasing the concentration of persistent, toxic substances at each trophic level, from the primary producers to the different consumer levels

Answer 16

biological magnification or biomagnification

Question 17

recycling inorganic matter between living organisms and their environment is called

Answer 17

biogeochemical cycle

Question 18

5 most common elements associated with organic molecules that are vital components of life

Answer 18

hydrogen, oxygen, carbon, nitrogen, phosphorus