A human cell with an unknown type has 23 chromosomes. Which of the following types of cells can the unknown be? Skin cell
Sperm cell
Cardiac cell
Intestinal cell

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials

The first generation of offspring from the cross of two parents is called the a. f1 generation b. f2 generation c. short generation d. p generation

The function of the excretory system is to control homeostasis and