24.) C - a change in DNA coding can lead to a change in the protein that is produced, which changes structure, and therefore, function.
28.) C - recombinant DNA is artificial, and the other examples can occur naturally
29.) B - if DNA enters and successfully is produced within a plant cell, but is not originally from the plant cell, then the cell has been transformed.
Smoking is one of the major reason of Lung cancer. But one may have cancer even if the individual is not a smoker due to radiation, secondary air pollutants.
<h3> What is cancer?</h3>
Cancer is described as the uncontrolled and abnormal growth of cells in one’s body which are arrested in the growth phase of the cell cycle and multiply rapidly and does not mature like normal cells, cancer is more aggressive form of a tumour.
The following describe the relation of smoking with lung cancer
- Cancer is caused by oncogenes activating substances [OAS] some of them causes mutation in the body
- These oncogenic substances in the smoke produced while smoking contains nicotine, hydrocarbons, cyclohydrocarbons and various other factors which converts normal cells into cancerous cells
- Hence,
- smoking
- causes
- oral
- and
- lung
- cancer
Learn more about Lung cancer
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It’s wind it’s not a fossil fuel and it’s part of a clean fuel source
There are several ways you can categorize things. This is an example of how I would put animals in order
1. Porifera (sponges)...they consist of a simple cell arrangement
2. Coelenterata (e.g Jellyfish) have an actual tissue
3. Platyhelminthes they are more complex and have muscles
4. Insects. They have several organs that and a simple brain
That looks confusing as hell so instead of answering im gonna waste your time. Good luck bud. School sucks. Its a buncha bull. None of this is gonna help you in the real world.
