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37 terms

Final Exam Review 7th grade

STUDY
PLAY
wet mount slide order to follow
slide, specimen, stain, cover slip
theory
something that is not a proven fact or law
fossil
imprints or remains of plants and animals that existed in the past
steps of the scientific method
state the question
form a hypothesis
test hypothesis
record and analyze results
state the conclusion
independent variable
factor that changes in a controlled experiment
Human classification
Kingdom: Animal
Phylum: Chordata
Class: Mammal
Genus: Homo
Species: Sapien
endothermic
warm-blooded
Are viruses living or non-living?
non-living
invertebrates
lack a backbone
Developmental order
cell, tissue, organ, organ system, organism
controls all activities in cell
nucleus
mitochondria
releases energy for the cell
found in plant cells only
cell wall and chloroplasts
gymnosperms
nonflowering plants
angiosperms
flowering
peristalsis
helps aid in swallowing food
locomotion
movement
diaphragm
muscle that aids in respiration and separates chest cavity from the other internal organs
capillaries
thin vessels through which materials are exchanged
vertebrae
protects the spinal cord
sexual reproduction
2 parents
asexual reproduction
1 parent
red blood cells
carry oxygen
source of all energy
sun
heterotrophs
can not make their own food
autotrophs
can make their own food
parasitism
type of symbiosis that harms host
mutualism
type of symbiosis that both organisms benefit from
ecological succession
process of gradual change within a community
cell theory
1. All cells come from preexisting cells.
2. Cells are the basic unit of all living things.
3. All organisms are made of cells.
produce protein in cells
ribosomes
genotype
combination of genes ex: TT, Tt, tt
phenotype
physical characteristics ex: tall or short
hybrid
combination of traits (dominant and recessive) ex: Tt
purebred
only one type of gene ex: TT or tt
dominant trait
stronger trait shown, a strong trait ex: T
recessive trait
masked by dominant trait (need 2 genes to be present) ex: tt