Which best describes plasmid?

A. Viruses that cause the common cold

B. A tube that comes off the virus

C. A piece of DNA transferred by a bacterium

D. A protective shell around a virus

Which bone does not form part of the lateral or superior walls of the nasal cavity?

Which of the following observations of children is the most objective? A. Joan was playing with blocks, building a structure, when Missy joined her. Joan looked afraid because Missy was much larger than she.

Regulates entry and exit of materials

Essential amino acids cannot be produced by the body so they must come from our diet. we can get them from eating foods that contain which bio molecule

A reaction in which the entropy of the system increases can be spontaneous only if it is exothermic.

Suppose you remove your test cultures from the incubator and notice that one of them-a known fermenter-has a gas bubble in the Durham tube. Knowing that fermenters frequently produce gas, you ignore the bubble and proceed to the next step.

In peas, yellow seed color (y) is dominant to green seed color (y). which describes an organism that has nonidentical alleles for seed color? yy and has green seeds yy and has yellow seeds yy and has yellow seeds yy and has green seeds

What would you expect to happen if sea otters were removed from this food web? Check all that apply. The population of elephant seals would decrease. The population of kelp crabs would increase. The population of kelp would increase.

When blockages in the bloodstream read the Brian it can cause blank?

A gazelle is born with slightly longer legs which allow it to run faster than the other gazelles in the herd. This adaptation came may have come about because a. the gazelle needed to be able to run faster. b.