Similarities being they both reproduce offspring, they provide food for humans, and they both have similar cell structures like ribosomes and the <span>nucleus. </span>
<span>Scientists who wish to clone genes of interest into bacterial plasmids utilize
restriction enzymes, which cuts the target and vector DNA at specific sites. then
DNA ligase is used to form covalent bonds between the resulting fragments to complete the recombinant DNA molecule.
</span>
<span>Restriction enzymes (endonucleases) are enzymes which recognize specific target sequences (recognition sites) and will make a double-stranded cut in the DNA molecule at or near recognition sites.</span>
DNA ligase is an enzyme which uses ATP to link two DNA molecules if they have matching ends.
Answer:Key stone
Explanation:
Keystone species hold together the complex web of relationships in an ecosystem. They can be animals, plants or microorganisms. Examples of keystone species include starfish, sea otters, wolves and elephants.
They have a shell, which is attached to their body, unlike other creatures. <span />
