The study of interaction between organisms and other organisms and their environment is ________.
Ecology
100
Weather is _______.
abiotic
100
The ultimate sources of energy for all living things are:
The sun (photosynthesis) or chemical energy from inorganic chemical compounds (chemosynthesis).
100
These consumers eat other animals almost exclusively.
carnivores
100
True or False - In a food chain, energy can flow in both directions between consumers and producers.
FALSE
200
Populations contain organisms of the same ____.
species
200
algae grows out of control in a pond
biotic
200
Autotrophs are also known as ________ producers.
primary
200
These consumers almost exclusively eat primary producers.
Herbivores
200
Food webs are made up of _________ .
Interconnected food chains
300
_____ contain similar climates and typical organisms.
Biomes
300
Shade from a building reduces the amount of sunlight plants can get.
abiotic
300
The chemical reaction that converts inorganic chemical compounds into carbohydrates is called __________.
photosynthesis
300
Which consumers depend on other animals or circumstances to kill the animals they eat?
Scavengers
300
The fact that a rabbit might be eaten by a hawk or a fox, and that a fox might eat the rabbit or a mouse, is an example of a food _____.
web
400
Different populations together in an area make a ____.
Community
400
Give an example of a biotic factor.
answers vary
400
The chemical reaction that converts inorganic chemical compounds into carbohydrates is called __________.
chemosynthesis
400
__________ gain energy by consuming the leftover pieces of dead and decayed matter after decomposition ; __________ gain energy by breaking down plant and animal matter.
detrivores ; decomposers
400
About how much energy is passed on from a food source to a consumer?
10%
500
The terrarium is an example of a tiny, closed-system ____
biosphere
500
Give an example of an abiotic factor.
answers vary
500
The greek root "-trophe" means _____
feed
500
How do detrivores and decomposers contribute back to food webs?
Decomposition releases nutrients that primary producers use.
500
If grass is eaten by a cow, and the cow is killed and eaten by a wolf, how much of the ORIGINAL energy from the sun gets to the wolf?