Answers.
Terms in this set (212)
activation energy energy needed to start a chemical reaction; lowered by
enzymes
active transport movement of molecules across a membrane requiring energy
to be expended by the cell
adaptation inherited characteristic that increases an organism's chance of
survival
allele the different forms of a gene; could be dominant or recessive
amino acid basic building blocks of proteins
analogous structures structures that do not have a common evolutionary origin but
are similar in form or function
anaphase the third phase of mitosis, during which the
chromosome pairs separate and move toward
opposite poles
antibiotic compound that blocks the growth and reproduction of
bacteria
antibody a substance produced by the body that destroys or inactivates
a pathogen that has entered the body
antigen substance (usually foreign) that stimulates the production of
an antibody
domain of unicellular prokaryotes that have cell walls that do
archaea
not contain peptidoglycan
, ATP a nucleotide that stores and transfers energy within cells
autotroph organism that can capture energy from sunlight or chemicals
and use it to produce its own food; also called a producer
bacteria domain of unicellular prokaryotes that have cell walls
containing peptidoglycans
bacteriophage virus that infects bacteria
base deletion mutation which results in the loss of nucleotide pairs in a
gene; have a major effect on the resulting protein
base insertion mutation which results in the addition of nucleotide pairs in a
gene; have a major effect on the resulting protein
base-pair substitution a type of point mutation where one nucleotide and its partner
are replaced by another pair of nucleotides
behavioral adaptation an inherited behavior that helps an organism survive; like
escaping from predators or find a mate
binary fission asexual reproduction in prokaryotes by which one cell divides
into two identical cells
fetus an unborn or unhatched vertebrate in the later stages of
development showing the main recognizable features of the
mature animal
fever a rise in the temperature of the body
fitness the ability of an individual to survive and reproduce in its
specific environment
food chain a series of steps in which organisms transfer energy by
eating and being eaten
a diagram that shows the feeding relationships between
food web
organisms in an ecosystem