Your answer would be, Prior to genetic engineering, Humans often used is called Selective Breeding, to gain desired traits in animals, such as dogs.
Hope that helps!!!! ( Answer: Selective Breeding).
The answer is A
Using energy
Answer:
because it represents what happens
Explanation:
The secretory cells are simple cuboidal epithelium . The epithelium tissues are bound together by connective tissue.
Simple cuboidal epithelium secrete its product into the mouth through ducts while connective tissues hold other types of tissues together in organs.
