Answer:
to know what you're talking about
the answer is the third one c
Pollution caused the environment to become more darkly colored, so moths were selected to be blacks and greys. Before pollution they were white and lighter colors. <span />
Answer:
Angiography
Explanation:
Doctors often use angiography that images the structure of blood vessels and the flow of blood through these vessels.
- Angiography uses x-rays to take images of blood vessels and detect the flow of blood through these vessels.
- Useful in showing blocked or narrowed blood vessel for the diagnosis of any coronary disease.
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Hope this helped!
<h3>~AH1807 </h3>
Answer:
Due to no resistance.
Explanation:
Most mosquitoes perish when DDT chemical was sprayed the first time because these mosquitoes are vulnerable to the DDT chemical and there is no resistance present in their body against this chemical. DDT chemical is an insecticide which is used against insects or pests that causes damage to human, organisms and crops. DDT was first synthesized in 1874 by the Austrian chemist named Othmar Zeidler.
