An is any large molecule or small organism whose entry into the body provokes synthesis of an antibody or immunoglobin.

Which type of organism is missing from the food web seen in the illustration? primary consumers decomposers primary producers secondary consumers

The body is protected against harmful flu viruses by

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