Acell contains
a.
bacteria and other small organisms.
b.
smaller structures that it do its job.
c.
a gel-like liquid with no structures.
d.
only empty space.

A is the best answer.

A cell contains bacteria and other small organisms.

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance