Antibiotic resistance in bacteria is the result of

A) binary fission.

B) nitrogen fixation

C) genetic variation.

D) genetic engineering.

Which of the following is an ethical concern against editing a gene for a disease in a specific tissue of a person? The edit may be passed on to the next generation. The gene editing will reduce suffering from the disease.

Which of the following types of nonrenewable fuel sources requires the storage of radioactive waste? A. Coal B. Oil C. Solar D. Nuclear

Which of the following enclose their DNA in a nucleus?

Compare the environmental costs of producing different types of food answer

Muscle cells make different proteins than nerve cells because they have different sequences of dna. True or False

Which of the following describes a relationship of commensalism? A. Oxpecker birds eat parasitic ticks off the backs of zebras B. The tapeworm latches itself in the intestines of a rat feeding off all the nutrients eaten by the rat C.

What lunar phase is required for a lunar eclipse? A New B Full C Half

In a classic experiment carried out by the biologist Hopkins in the 20th century, 20 young rats were divided into two groups.

There is no evidence indicating that cigarette smoking has skin-aging effects. true or false

Benthos are organisms that live? A. on the surface of water B. throughout the water column C. on the sea floor D. in shallow water