Describe the different abiotic and biotic parts of an ecosystem. Identify and explain what organisms lie on each of the trophic levels.

Describe the characteristics that all living things share.

A pyrotechnician mixes 280 g of black powder for a firework. Find the amount of oxygen, carbon dioxide, and sulfur dioxide generated when this firework bursts, if the oxidizing agent in the powder is saltpeter.

What will happen to a cell with an inner solute concentration of 1% when it is placed in a 5% salt solution?

List four safety precautions that should be taken while in a lab.

What is ATP definition

A 25 N and 5 N force pull to the right. Friction is 10 N. If the object is 5 kg, find the net force and acceleration.

What properties of matter are intensive independent of their size

What is the density of an object having a mass of 8.0g and a volume of 25cm3

What is a Cilla? (In drawing)

Which term names the group of organisms able to interbreed and produce fertile offspring?