science final review sheet study guide!

cell wall

gives plant cells structure

nucleus

directs all cellular activity

lysosomes

destroy or recycle damages material in cell

organism

single living thing

cell membrane

controls what goes in and out of the cell

endoplasmic reticulum

transports material around the cell

ribosomes

make protein for the cell

mitochondria

take food and turns it into energy for cell

golgi bodies

sort and package materials for cell

chromosomes

structures in DNA that contain genetic material

how many chromosomes humans have

46 chromosomes

mitosis

process of cell division

dominant trait

overpowers recessive traits and show through

what adenine pairs with

thymine

what thymine pairs with

adenine

what cytosine pairs with

guanine

what guanine pairs with

cytosine

latent virus

virus in your body that waits for right time to being multiplying

evolution

gradual changing of species over time to be better suited to its environment

cerebellum

responsible for impulses that control movement

when cytokinesis occurs

during telophase

shape of DNA

double helix

selective breeding

when humans guide the evolutionary process

natural selection

when best adapted species thrive and pass on its traits

genotype

actual combination of traits organism has

arteries

take blood AWAY from the heart

scientific name for skull

cranium

capillaries

where exchange of oxygen for carbon dioxide takes place

cartilage

flexible connective tissue that cushions and supports the bone

small intestine

where actual nutrition is removed from the food

three types of muscle

skeletal, cardiac, and smooth

trough

low point of a wave

crest

high point of a wave

mechanical wave

needs a medium to travel through

compression

close together part of compressional wave

inaudible sound

cannot be detects by human ears because of the frequency

electromagnetic wave

can travel through space

scientific name for shoulder blade

scapula