Antibodies are:

produced by the B cells

antigen-specific

proteins

all of these

A microbiologist has isolated a bacterium from his face and wishes to determine whether it might be a member of the normal microbiota. Which of the following would NOT be evidence for such a conclusion? The bacterium is extremely salt tolerant.

What cycle is closely related to the carbon cycle?

Describe Describe the characteristics of the four zones found in the ocean.

Which of the following would be a result of eutrophication of a lake? A) undergrowth of water plants B) hypoxia, or low levels of oxygen C) decreased decomposition D) inactivity of fertilizers

A symbiotic relationship in which one organism benefits while one organism is harmed is known as -

Which of these would have the most immediate effect on the ability of a plant cell to carry out photosynthesis? A) change in soil pH B) increasing air temperature C) reduction of light intensity D) increasing atmospheric humidity

Which planet is farthest from the sun since Pluto is no longer considered a planet?

7. A type of cell division that results in diploid cells: [meiosis / mitosis

Blood groups in humans are inherited with the alleles for type a and type b acting in a co-dominant manner, and both a and b are dominant to type o. if two parents with type b blood have a type o child, the genotype of the father must be:

How is the energy released in the breakdown of glucose converted to a form usable by the cells?