A certain atom has an atomic number of four. How many protons does it have?

Do flowers contain more stamen or pistils?

What is other word for carefully looking at an object or process beginning with the letter O and is 8 letters long

1.) Which of the following is caused by a germ cell mutation? -Asbestos Disease. -Common Cold. -Down syndrome. -Formaldehyde poisoning. 2.) which process is recombinant DNA inserted into a cell to alter the cells genetic makeup? -cell transformation.

In which products are you likely to find sulfur? A. Fertilizers, batteries, and cleaners B. Aircraft windows, medicines, and electronics C. Glass, cement, and fiberglass D. Construction products, pottery, and precelain

Which of the following accurately describes the structure of DNA? a. DNA is in the form of antiparallel strands twisted as a double helix. b. DNA is made up of nucleotides, containing a 3-carbon sugar, a phosphate group, and base. c.

How many kingdoms are in the modern system of classification?

One cell that undergoes meiosis will yield how many independent cells

What type of macromolecule is the sugar fructose?

DNA uses, while RNA uses.

How does pollution affect land, air, and water?