Sound production is also known as phonation, and involves the process of vibrations generated by a combination of respiration, the vocal organ and the vocal tract. The physical structures that birds use are highly similar to that of humans, and the sounds that is generated travels through respired air.
Answer:
Unsafe: Boy in top right using the microscope near the window
Unsafe: boy in the front saying oww.
Unsafe: boy behind the boy saying oww hitting another kid over the head.
Explanation:
I had this exact assignment two years ago, however, those are all that I can remember, and it is very hard for me to see what is going on, so I am sorry that I could not be of more help.
<span>When listing the components of a forest ecosystems, a scientist would list all the plants, animals and microorganisms, as well as all the non-living elements that combine to make up the entire ecology of the forest. </span>
Antigens specific proteins
