Antibodies are produced when the body is exposed to A. white blood cells. B. receptor proteins. C. antigens. D. macrophages.

Which process is directly responsible for the trails of a comet facing away from the sun A. Solar Wind B. Gravitational effects of nearby planets C. The comets rotation D. Heating by the sun

What are the phases of mitosis? Name and draw with labels below. [5pts]

Can mold grow inside of chocolate

Which is an environmental factor that affects skin color in humans? amount of food consumed amount of sunlight absorbed number of genes inherited number of linked genes

Which two factors can both cause a population to increase? birth rate and emigration birth rate and immigration death rate and immigration death rate and emigration

What is true about ice and liquid water

The four genotypes when a heterozygous male with dimples is crossed with a homozygous female without dimples would be?

Which Structures does a cell need for movement? A. mitochondria and Cytoplasm B. cilia and cytoskeleton C. cilia and flagella D. ribosomes and nucleus

Which is the role of the gall bladder? A:to provide physical digestion B:to store the liquid produced by the liver C:to make the liquid that is stored in the liver D:to decrease the chemical digestion

What kind of energy runs our school buses?