The branch of biology dealing with interactions between and among organisms and their environment
What is ecology
100
This is the way that most producers make their own food
What is photosynthesis (using light energy to make carbohydrates)?
100
The algae at the beginning of the food chain are
What is producers
100
The total amount of living tissue within a given trophic level.
What is biomass?
100
The repeated movement of water between Earth's surface and the atmosphere is called
What is the water cycle?
200
The simplest grouping of more than one type of organism is called
What is a community?
200
These organisms can eat both producers and consumers.
What is omnivore
200
Herbivores and carnivores have this in common
What is consume other organisms for energy?
200
This is the term for each step in the transfer of matter and energy within a food web.
What is a trophic level?
200
This part of the water cycle is a biological process
What is transpiration?
300
The lowest level of biological complexity that includes both biotic and abiotic factors is called this
What is an ecosystem?
300
Another word for consumer is
What is heterotroph?
300
A model of the complex feeding interactions among organisms in a community from producers to decomposers is called
What is a food web?
300
Thee are three kinds of ecological levels
What is numbers, biomass, and energy?
300
Nitrogen fixation is primarily carried out by
What is bacteria?
400
Organisms within an ecosystem are these type of factors
What is biotic
400
Phosphorus is important for living things because living things need phosphorus for
What is DNA and RNA?
400
Organisms that break down organic matter and return it to the environment are called
What is decomposers
400
Only 10% of the energy stored in an organism can be passed to the next trophic level. Of the remaining energy, some is used for the organism's life processes, and the rest is
What is eliminated as heat?
400
Animals get most of the nitrogen they need by
What is by consuming other plants and animals?
500
Autotrophs capture energy from light or these to acquire their own energy
What is chemicals
500
This is a biotic factor that affects population size
What is predators
500
Suppose extra nitrogen were provided to an aquatic ecosystem. This population would increase in size first.
What is algae?
500
This is at the base of all ecological pyramids
What is producers
500
In the water cycle this occurs between transpiration and precipitation