What is an ion?

A.

a group of two or more atoms that acts like one atom

B.

a compound that contains two elements

C.

a particle in the nucleus of an atom that has no charge

D.

an atom or particle with a positive or negative charge

Which of the following allows a cell to become specialized? A. location of the cell in the body B. different patterns of gene expression C. different combinations of genes in the nucleus D. function of the cell in the body

You notice a buildup of dark clouds and shifting winds. what is likely?

How does the growth among living and nonliving things differ?

What process produces mRMA

Determine whether the statements below are true or false. When the body has a weakened immune system, the production of antibodies is increased. When the body has a weakened immune system, abnormal cells steal nutrients from healthy cells.

What Is The Job Of A Root Hair Cell?

What characteristic is shared by birds, salamanders, and sharks?

What economic factor promoted the growth of city states in nothern italy

Alveoli, capillaries, and glomeruli capsules are all lined with simple squamous epithelium. What function is shared by these structures?

Which of the following is a way that new DNA can be introduced to bacteria?