Why is evolution considered a theory?

A. It was proposed by a scientist.

B. It cannot be proven.

C. It is a guess about what happened.

D. It is backed up by scientific evidence.

Chromosomes are lined up at the equator of the cell during this stage of mitosis. A. Prophase B. Anaphase C. Metaphase D. Telophase

DNA and RNA are both A. made up of nucleotides and carry molecules from one end of a cell to another B. monomers of protein molecules that provide structure to a cell's nuclear membrane C.

Which illness is characterized by obsessive overeating and excessive weight gain?

When your pH becomes out of balance (too basic or acidic) how will it affect you? A. Your cells will lose their membrane permeability. B. You will get severe heartburn. C. Your proteins and enzymes will lose shape and stop functioning. D.

Crooked little fingers (streptonicrodactyly) is inherited as a dominant trait in humans. If a man with both genes dominant from crooked little fingers marries a woman with normal little fingers, what percent of their children will have crooked

what could potentially cause more damage to an organism a deletion mutation at the beginning of a dna sequence or at the end of a DNA sequence?

The end daughter cells are diploid or haploid

Why are species like the lionfish considered "invasive"?

What process hollows out limestone caves?

Increasing levels of chemicals in freshwater is attributed to fertilizers why