science exam cells and systems Flashcards
1
Q
7 characteristics making something alive
A
-made of cells
-need energy
-adapts to environment
-produce waste
-grow and develop
-metamorphosis
-reproduce
2
Q
how do microscopes work
A
object magnifies thru a lens and light bends towards eye
3
Q
what is a cell
A
basic unit of life
4
Q
diffusion
A
the movement of particles from an area of high concentration to low concentration
5
Q
osmosis
A
the diffusion of water thru a semi-permeable membrane
6
Q
A
