Biology Quiz

The positively charged particle in an atom is called the

• neutron

• ion

• proton

• electron

Living organisms use which macromolecules to store and transmit genetic information?

• Fat

• sugar

• protein

• nucleic acid

Tags

NGSS.MS-LS3-1

Two or more different atoms are combined in definite proportions in any

• symbol

• isotope

• element

• compound

Tags

NGSS.MS-PS1-1

A covalent bond is formed by the

• transfer of electrons

• gaining of electrons

• sharing of electrons

• losing of electron

Which end of the water molecule has a slightly positive charge?

• the oxygen end

• the hydrogen end

• both ends are slightly positive

• neither end is positive

Water is a universal solvent because it

• It can be found anywhere

• It freezes when it gets cold

• floats when frozen

• Dissolves most substances

Water striders can walk on water because of _____.

• capillary action

• adhesion

• surface tension

• universal solvent

Why is water so good at dissolving so many substances?

• it is polar

• it is less dense as a solid

• cohesion

• adhesion

By using a sunlight, water, and carbon dioxide, what do producers make?

• Seeds

• candy

• sugar

• soil

Tags

NGSS.MS-LS1-6

Ammonia has a pH of 12. Ammonia is _____