Cells of the immune system are able to respond to the presence of invading organisms because they recognize the? A. Antigens on invaders

B. antibodies on pathogens

C. DNA pattern in the nuclei of viruses

D. antibodies released from microbes

When bonds are broken, energy is released. a. True b. False

The type of relationship described could best be classified as one of

Darin had an automobile accident in which his brother and another passenger were killed. though darin wasn't seriously hurt in the accident, he can't remember any of the accident details. darin is engaging in which ego defense mechanism?

Meiosis 1 begins with a? A. Bacterial Cell B. Prokaryotic Cell C. Haploid Cell D. Diploid Cell

Vaccinations elicit a primary immune response so that secondary immune responses are rapid and symptoms are mild. vaccinations elicit a primary immune response so that secondary immune responses are rapid and symptoms are mild. a. True b. False

Piebald spotting is a condition found in humans in which there are patches of skin that lack pigmentation. The condition results from the inability of pigment - producing cells to migrate properly during development.

Explain the cellular functions that occur when antibiotics attack a bacteria cell.

Which is the most likely medical reason that a doctor might require a pregnant woman to get ultrasounds more frequently

The human activities in two locations are described below: Location A: Rampant use of plastic containers Location B: Excessive use of pesticides and fertilizers Which statement is most likely true? A.

According to the central dogma, which of the following represents the flow of genetic information in cells? protein to DNA to RNA DNA to RNA to protein RNA to DNA to protein DNA to protein to RNA