biology

_________________is the another word for living thing.

a group of organs that work together is called an

• organsystem

• digestive system

• respiratory system

• excretory system

which system allows the part of the body to communicate

• nervous system

• digestive system

• respiratory system

• excretorysystem

the end of the bones are covered by a slippery material called

• cartilage

• ligament

• hingejoint

• ball socket joint

what acid is present when the bacteria feed on sugar in the milk

• lactic acid

• acetic acid

• carbonic acid

• tartaric acid

solids keep the _______________--shape

______________--------move to fill any container they are in

_____________transfer messages from one part of the body to another.

________________grow from the surface layer of the root

• roothaircells

• cellwall

• cellmembrane

• large vacuole

red blood cells are red in colour due to pigment called