Which of the following is true of mutations?
-a.) most mutations are beneficial. -b.) mutations can sometimes produce organisms with new & desirable characteristics. -c.) mutations produce changes that are not inheritable. -d.) mutations do not generally occur on genes.

2.) what is the small circular dna molecule found in some bacteria that can be used for cell transformation?
-a.) dna polymerase. -b.) electrophoresis. -c.) plasmids. -d.) recombinant dna.

Iwill give brainiest to first person who gets it ! what are 3 basic types of interactions we see in an ecosystem?

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

You see a white marker with an orange circle and black lettering. what does this marker tell you