Answer:
C.
It controls the entry and exit of substances.
A(n) ___ is a group of terrestrial communities that covers a large area and is characterized by certain soil and ____ conditions and particular types of plants and animals
Giant squid can be found In the North Atlantic ocean.
I think your answer should be B. an organism. Hope this helps. =^-^=
<h3><u>Answer;</u></h3>
Gene therapy to correct defective genes that cause diseases.
<h3><u>Explanation</u>;</h3>
- Gene therapy refers to the procedure that involves the introduction of nucleic acids (DNA or RNA) into the cells of an organism for the purpose of correcting abnormalities, such as a mutations or in other words to treat a genetic disease.
- Gene therapy entails bringing a normal and functional gene known as a trans-gene into a cell with altered gene. Another method can bring RNA capable of partially regulating or blocking the expression of an altered gene.
- The nucleic acids are introduced into the patient's cells by means of a viral vector or injected directly into the cells in the form of naked DNA.
