Which part of an atom has most of its mass?

electrons

neutrons

nucleus

protons

a woman has type O blood and her child has type A blood could a man with type B blood possibly be the father of the child? Why?

A cell has formed a food vacuole as it ingested a food particle. What events is associated with the breakdown of that food particle?

When washing your hands as a healthcare professional, the last action step should be to:?

One celery stick is placed in a beaker of pure (100%) water. A different celery stick is placed in a beaker of an 80% water and 20% solute solution. Predict the outcome.

Which is an indication that a chemical change to a substance has occurred? It changes shape. New substances are formed. Energy is used or given off. both B and C

Which of the following types of compounds is unlike the other three A - Wax B - Saturated fat C - phospholipid D-polysaccharide

What predictions can researchers make based on the egg viability hypothesis?

What occurs after a disturbance in primary succession?

A person driving a car applies the brakes. This produces friction, which stops the car. Into which type of energy is the mechanical energy of the car converted

Why do our classification systems change?