Answer:
Most ocean pollution begins on land.
Much of this runoff flows to the sea, carrying with it agricultural fertilizers and pesticides. Eighty percent of pollution to the marine environment comes from the land. One of the biggest sources is called nonpoint source pollution, which occurs as a result of runoff.
The correct answer is immunoglobulins.
Immunoglobulins, also called as antibodies, refer to the molecules or glycoproteins generated by the white blood cells (plasma cells). They function as an essential component of the immune reaction by uniquely determining and combining with the specific antigens, like viruses or bacteria, and helps in destructing them.
Most important thing is that you should have a perfect sense of your environment observe it yet study it.
Biology is a 'scientific nature '.
LIVE IT. SENSE IT. FEEL IT.
Answer:
Not using control cases and testing his hypothesis only on one pacient, himself. Not creating or using a method that allowed him to measure the results.
Explanation:
During the investigation Alon had a few methodological flaws. First of all, he based a hypothesis over only one case, his own. He should have tested the product on different pacients under similar circumstances, the more the merrier. Moreover, it is not recommended that the investigator tests the hypothesis on himself, since he can lose perspective.
Second of all, he did not use control cases. This means he should have given placebo pills (pills with no medical effect at all) to a group of pacients without them knowing. Doing this helps eliminating the psicologycal factor of the equation, since pacients have proven to get better, in some cases, just because they thought the medicine would heal them, and not because of the drug itself.
Also, he came to a conclusion based on how anxious and worried he felt after the treatment, but expresses the results with words such as <em>"much more"</em>. In this case he should have created and/or used a method to measure the change in anxiety and how much the pacient worried. For example, before starting the test he could have rated his anxiety level from 1 to 10, and then, done the same thing during and after the treatment was over. By doing this he creates data that can be numerically processed and makes the human subjectivity factor smaller.