Due to photosynthesis, plants convert Sunlight and Carbon Dioxide into Oxygen. All living things breathe in this gas (Oxygen).
<span>Cells control cell division in order to maintain normal cell function. If something happens to the control of the cell division, the healthy cells will divide uncontrollably. These new cells are cancer cells. </span>
The mutations in three genes are responsible for development of cancers:
1. Mutation in proto-oncogenes. Proto-oncogenes normally signal cells to grow and differentiate. Proto-oncogenes can become oncogenes due to mutations which result in the uncontrollable division of the cells.
2. Mutation in tumor suppressor genes. In normal cells, tumor suppressor genes suppress genes essential for cell cycle and that way they prevent uncontrollable cell division. However, after a mutation in these genes, suppression is lost and the cell may progress to cancer.
3. Mutation in stability genes. In normal cells, they have no role either in cell death or growth, but they control mutation rate. Mutation in stability genes results in situation where all genes, including proto-oncogenes and tumor suppression genes, are more frequently mutated.
Answer:
Lunar Phases.
Explanation:
Lunar phases are created by changing angles of the earth, the moon, and the sun, as the moon orbits the earth.
Answer:
The following are some pros and cons for badger control to stop bovine tuberculosis
Explanation:
Pros
1. culling showed significant decrease the occurrence of the disease in herds
2. The reduction in disease has been great economic help for farmers as the treatment is very expensive if the cows are tested positive.
cons
1. disrupted the ecosystem by targeting and killing badgers.
2. The policies and control methods are not cost efficient. they are high maintenance.