Final Exam Review 7th grade

37 terms by Rybak 

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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

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