D. the number of mates on the island
their appearance changes cause different birds breeding together can make an impact of how the bird looks
Answer:
C) are sequence-specific DNA endonucleases
B) degrade foreign DNA that enters a bacterium.
Explanation:
Restriction enzymes are the proteins that cut the DNA at a specific sequence.
<u>Restriction enzymes are also known as restriction endonuclease produced by bacteria that recognizes a specific sequence on DNA and split it by catalyzing the hydrolysis or addition of water molecule. </u>So, Restriction enzymes are sequence-specific DNA endonucleases.
The biological role of restriction enzymes is to restrict the entry of foreign DNA into the bacterium. <u>Restriction enzymes have the ability to restrict the number of bacteriophage strains that affect bacteria.</u>
Hence, the correct options are "C and B"
If scientists collect and store seeds samples this means that they want to have a collection of the species with the objective of being sure that the species won't disappear- with the objective of preserving the species.
If they collect seeds of many species, this means that they're interested in the diversity of species: the correct answer is (4) preserve the diversity of plant species
In the 9th century, it was suggested that when organisms change, they are adapting to survive.
Lamarck, was the researcher that created the theory of acquired characteristics.
Malthus first proposed the idea that overpopulation <span>contributed to the lack of resources and interfered with survival, but he applied this to only humans, Darwin was the first to apply this to all organisms.</span>
Commensalism is defined as a relationship between two species where one has certain benefits from the relation and the other is unaffected. So, in this case, it is hard to determine what kind of relationship the gray wolf and human populations have because when people intervene to help protect a species they are officially unaffected, they do not lose or gain anything, but the gray wolf is one of the key species in their ecosystem, so protecting them is beneficial for the ecosystem, therefore can have numerous positive effects on human-environment too.
