Characteristics of Life
Smallest unit of life
cell
One living thing
Organism
An organism that makes its own food
autotroph (will accept producer, or plant)
The first trophic level of an energy pyramid contains _______.
plants, producers, or autotrophs
The genetic code that all living things are made of
DNA
abiotic
an organism that eats both plants and animals
omnivore
Only _____ of the available energy from one level moves on the next trophic level.
10%
To react to a stimuli in the environment
Respond or Response
All of the same species living together in a given area
population
Which trophic level contains herbivores?
The second level (or primary consumers)
Grass - Crickets - Frog - Snake - Hawk
The snake is a ____ consumer
Teritary
Maintaining a stable internal environment
homeostasis
All of the different communities, living together with abiotic factors is _________.
ecosystem
Explain how a bear can be a primary consumer and a secondary consumer (what is he consuming)?
Bear eats berries = primary consumer
Bear eats salmon = secondary consumer
If only 10% of the energy from level moves to the next, what generally happens to the 90% that does not move up?
It is lost as heat
The sum of all chemical reactions in the body (to obtain and use energy)
metabolism
Put the five levels of organization in order from least to greatest.
organism, population, community, ecosystem, biosphere
What is a food web?
An interconnected series of food chains.
GRASS - GRASSHOPPER - FROG
If there is 200 kcal at the primary consumer level, how many kcal are available at the secondary level?
20 kcal