What does the survival of the fittest mean

How do cells in single-celled and multi-cellular organisms differ?

Which statement about gases is true? They are made up of particles that always move very slowly. They are made up of particles that travel in a curved path when in motion. They are made up of hard spheres that vibrate quickly in stationary positions.

Which two elements are the most abundant in the Earth's crust?

Smoke is a homo or hetero

Which transition elements in the first transition series have anomalous electron configurations?

What type of solution is aerated water. why is it so.

What elements form chemical bonds

Which of the following is not a pseudoscientific claim

Which action by the British government was considered by American colonists to be a violation of their rights as Englishmen?

Calculate moles of oxygen atoms in 0.68mol of KMnO4