Organisms
What is a habitat?
an organism's physical enviornment
Do organisms make their own carbon?
no
What is a food web?
an illustration showing interconnected food chains
proteins
What is an organism?
an individual that carries out life processes
In the atmosphere, what does carbon take as?
co2 (carbon dioxide)
how do enzymes affect reactants?
they position reactants correctly
What is a niche?
an organism's role in a physical environment
How do animals get carbon?
By eating other organisms that contain carbon
What is a trophic level?
What happens when enzymes are at high temperatures.
they denature, or lose shape
How do we define life?
must have cells, must use energy, must grow and develop, must reproduce
chains of carbon form the backbone of many molecules including _____, ______, and ______?
carbohydrates, proteins, lipids
the sun
What temperature do enzymes usually prefer?
Normal body temperature (~98.6)
What is biodiversity?
the total variety of organisms in the biosphere
What is the chemical equation of photosynthesis?
6 Co2 + 6 H2O → C6H12O6 + 6 O2
what percent of energy is lost each step up in the food chain?
90%
How do enzymes affect reaction rates?
They increase reaction rate with less energy