Aprotein substance that is produced in the body in response to an invading foreign substance is called a/an:

Complete the possible outcomes for each generation in the pedigree chartaa aa aa

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1

Which group of algae is characterized by unicellular organisms and includes some members that would be better classified as zooflagellates? euglenophytes red algae sporozoans green algae