unit 1
all the solid features of earth's surface
what is a reactant
initial substances in chemical reactions
what is carnivore
organisms that only eats animals
define evolution
process of biological change by which descendents come to differ from their ancestors
what is a biome
major regional of organisms characterized by specific climate conditions and plant communities.
what is an organism
individual animal plants or single celled life form
what are the nucleic acids
DNA, RNA
what is a detritivore
organism that eats dead organic matter
a tail, limb buds, and pharyngeal arches
what is biodiversity
a measure of the number of different species found within a specific area
what is a community
what is a protein
whole classes of molecules
define the 10% law
when energy is passed in a ecosystem from one trophic level to the next, only 10% of the energy will be passed down .
define analogous structures
structures that perform a similar function but are not similar in origin
what is a atomic sphere
all of the air that envelopes the earth's solids and liquid surface.
a predator capturing and feeding upon the prey
what is a polymer
any of a class of a natural composed of very large molecules
define biomass
total mass of organisms in a given area or volume
define hox genes
genes that guide the process or result in the development of an organisms characteristics body plan from a early stage
what is a cryosphere
the frozen parts of an ocean
what is a habitat
includes all abiotic and biotic factors
what is a monermer
molecule of any class of compounds that can react with other molecules to form very large molecules.
what is evaporation
process of a liquid converting to the gas state
define adaptation
feature that lets an organism survive and reproduce in its environment
a portion of earth's environment that has been constructed or modified by humans