Properties of Water
the ability to take in a material
Absorbacy
group of organisms so similar to one another that they can breed and produce fertile offspring
species
part of DNA controlling physical characteristics and growth
gene
uncontrolled cell growth
cancer
an internal need that causes an animal to act
motivation
the measure of mass of a substance per unit volume
density
all of the individuals of a species that live in the same area
population
a long linear polymer found in the nucleus of a cell
DNA
series of events that cells go through as they grow and divide
cell cycle
the most complex type of learning
insight
the force that acts on the particles at the surface of a material
surface tension
inherited trait that is selected over time because it allows organisms to better survive in their environment
adaptation
an allele that produces the same phenotype whether its paired allele is identical or different
a structure in the nucleus that contains genetic material
chromosome
a simple automatic response that involves no conscious control
reflex
the quality of water that makes it able to dissolve more substances that any other solvent can
universal solvent
process by which humans modify a species by breeding it for certain traits
artificial selection
a unicellular organism lacking a membrane-bound nucleus and an organism of one or more cells with membrane-bound nuclei
prokaryote and eukaryote
a phase of mitosis in which chromosomes become visible and nuclear membrane disappears
prophase
when animals carry out a specific set of actions in response to a stimulus
fixed action pattern
he amount of heat needed to raise the temperature of one gram of a substance by one degree Celsius
specific heat
body part that is similar in structure on different organisms, but performs different functions (ex. limbs of humans and bat wings)
homologous structure
a specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape
centromere
unspecialized cell that can develop into a specialized cell under the right conditions
stem cell
anything an animal does in response to a stimulus in its environment
behavior