How is immune memory beneficial to a host organism?

What will be an ideal response?


Answer: Immune memory provides the host with the ability to immediately resist previously encountered pathogens. After the initial encounter with an antigen, the host is stimulated to produce effective antigen-activated antibodies, or TCRs. A subsequent exposure to the same antigen stimulates rapid production of large quantities of the same T cells or antibodies for future protection.

Biology & Microbiology

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A condition characterized by facial and deformities, genital anomalies, and cognitive impairments, is called ________ syndrome.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

A gram-positive bacillus identified as Lactobacillus is isolated in large quantities from the urine of a 16-year-old female. Based on this information, the patient should receive which antibiotic?

a. Penicillin b. Tetracycline c. Vancomycin d. No antibiotics should be administered.

Biology & Microbiology

Which of the following are vestigial structures?

A) Wings of bats B) Fish fins C) Hoofs of horses D) Pelvic bones of whales E) Vertebral columns in snakes

Biology & Microbiology

There is a good chance you will eat carrageenan today and that you will eat nori at some point in your life, if you haven't already. In either case, you will be eating a product of

A) brown algae. B) red algae. C) green algae. D) diatoms.

Biology & Microbiology