Process in which plants make their own food
Photosynthesis
All of the organisms of the same species living together in a given area at a given time
population
Smallest unit of life
cells
A simple, linear feeding relationship of organisms in an area.
food chain
Which trophic level has the most biomass?
producer (plant or autotrophs)
What gas do plants take in from the atmosphere during photosynthesis?
carbon dioxide
Biosphere
Reproduction that requires only one parent
Asexual
Eats both plants and meat.
omnivore
Primary consumers only eat plants. What is another name for this?
herbivore
What are the reactants for photosythesis?
CO2 and H2O and (in the presence of sunlight)
Different populations of organisms living together in a given area at a given time
Community
A plant growing toward the sunlight in your kitchen window. A cat running from a car pulling in to the driveway.
respond
Breaks down dead or decaying matter and recycles into the earth
decomposer
What are the three ways to describe the 3rd trophic level?
Secondary Consumer, heterotroph, carnivore
What is the "food" called that plants make during photosynthesis? (Try to use all 3 names)
glucose, carbohydrate, sugar
Organisms that are so similar they can breed and make offsprings.
Species or Population
The sum of all chemical reactions in the body
metabolism
What does the arrow represent in a food web?
If the energy pyramid has 4 trophic levels, what is the name of the trophic level that has the least amount of energy available?
Tertiary Consumer
What are the products of photosynthesis?
glucose and oxygen
All of the communities (biotic factors) and abiotic factors living together in a given area at a given time
Ecosystem
Sweating on a hot day or shivering on a cold day.
Homeostasis
Why are there fewer hawks than producers?
There is less energy available as you move up the food chain.
If producers have 10,000 kcal available, how many kilocalories are available at the secondary consumer level?
100