Health
group of drugs that includes alcohol
depressants
Respiratory structure that is unique to mammals
diaphragm
Idea that the universe and life are the result of chance and natural processes
evolution
refers to the similarity of design found in many living things
homology
Large vessels that carry blood back to the heart
veins
Physical activities that strengthen the heart and lungs
aerobic
Animals that chew the cud
ruminants
Idea that an organism better able to survive in an environment will survive and become predominant
natural selection
animals without a backbone
invertebrates
tiny air sacks found in a person's lungs
alveoli
most commonly abused hallucinogen
marijuana
Mammals whose young develop in the womb
placental mammals
Sudden permanent change that occurs in DNA
mutation
science put to practical use
technology
largest part of the human brain
cerebellum
disease caused by pathogens
infectious
slow moving arboreal xenarthran with large claws
sloth
Variation of the gene pool within a particular kind
speciation
Factor that is observed to determine the results of an experiment is a ? variable
dependent variable
sum of all body activities
metabolism
thin, sticky film of bacteria that forms on teeth
plaque
Only mammal that can fly
bats
Incorrect view of life in which each species descends directly from an identical created species with no variation
lawn view
Strong feeling expressed in a physical way
emotion
Organ that produces bile and filters poisonous substances from the blood
liver