A horse and a donkey can mate with each other. Their offspring, called a mule, is not fertile. Do horses and donkeys belong to the

same species? Explain your answer.

Dr. L. Hill conducted a study examining music ability in families; she recorded the concordance rates of music ability of adopted children and their parents (who raised them), and she also recorded the concordance rates of the children with their

Which organelle functions in modifying proteins after they are made on the ribosome? A. Golgi apparatus B. Smooth endoplasmic reticulum C. Rough endoplasmic reticulum D. Ribosomes

What steps is there to forming a fossil?

Which organelles are called endosymbionts and why

Another component of acid rain is nitric acid, which forms when NO2, also a pollutant, reacts with oxygen and water according to the simplified equation 4NO2 (g) + O2 (g) + 2H2O (l) → 4HNO3 (aq) The generation of the electricity used in a

1. Synthesize Information How do you explain to the horse owner why this foal was born with OLWS while two previous foals were perfectly healthy? What would you tell the new parents of the baby girl about their prospects for having more children?

What organelle is the control center for the cell and holds the DNA

The primary structure of a protein refers to the sequence of amino acids that are linked together in a long chain. Which of the following common items would best represent the primary structure of a protein? O A.

How many chromosomes do humans have? how many copies in normal cells? How many pairs? How many copies in sex cells?

How many times has blastopore fate changed over the course of evolution? -o times -1 time -2 times - multiple times