Acetic Anhydride poses a hazards from exposure to mouth, nose
and throat, skin, eyes that can cause cough, shortness of breath, sore throat,
skin burns, blisters, redness and pain in the eyes, abdominal pain and shock.
when working with acetic anhydride, safety precautions include:
<span>1.
</span>REFRAIN from any form of CONTACT. Wear
protective clothing, gloves, goggles and face shield/ breathing protection.
<span>2.
</span>Provide adequate ventilation.
<span>3.
</span>Avoid open flames and smoking.
<span>4.
</span>Use explosion-proof electrical equipment.
The answer is true. A matches with T. C matches with G.
Answer: The hypothesis can be completed as-
If the type of food available changes, then the frequency of beak also changes.
Explanation-
Natural selection is a theory of evolution that was given by Charle's Darwin. According to this theory, organisms that are capable of adapting themselves ( that is having beneficial traits, which enhance their survival) in the changing environmental conditions survive and increase their number by means of reproduction.
According to the information given in this question, the type of food available is changing, which will result in the change in the frequency of bird beaks inhabiting that area. This would indicate their adaptation so as to survive under the changed food type, otherwise they will be unable to consume the food resources and will die out.