chapters 1 & 2

Question 1

what are some characteristics of living things?

Answer 1

made of cells
reproduce
contain genetic code
maintain internal environment (homeostasis)
grow and develop over time
convert materials into energy (metabolism)
respond to environment
change over time (evolution)

Question 2

how are life forms connected?

Answer 2

cycling of matter and the flow of energy

Question 3

what are cells?

Answer 3

smallest unit of life

Question 4

how many cell types does our body have?

Answer 4

85+

Question 5

what is the evolutionary theory?

Answer 5

all life forms are related by a common ancestor

Question 6

what is homeostasis?

Answer 6

maintaining a stable internal environment

Question 7

what is a cell culture?

Answer 7

group of cells from a single cell that reproduced in a nutrition solution

Question 8

what is cell fractionation?

Answer 8

separating cells into different parts