From what i understand of the question, its water? Im not sure exactly what the question is asking, sorry :/
4-Growth, maintenance, balance fluids, maintain proper hp
2-Actin, collagen
Answer:
<h3>C) genetic engineering</h3>
Explanation:
Hope this helps
Proto-oncogenes signal cells to grow and differentiate. However, they can become oncogenes due to mutations which result in the uncontrollable division of the cells, i.e. cancer. One way is a point mutation in a proto-oncogene. The consequence is changed protein product. Another way is gene amplification of DNA segment containing a proto-oncogene. As the result, the encoded protein is overexpressed. The third way is translocation. As the result of translocation, proto-oncogene can be controlled by the different promoter and expressed inappropriately.
The preen gland releases oils that the bird spreads over its feathers during preening to maintain them.
