B have a rich oral tradition I think
Answer:
its either christianity or islam sorry
Explanation:
By studying it we can tell how long life has existed in earth and how different plants and animals are related to each other.
Answer:
This statement is true.
Explanation:
The ultrasound gel is a conductive medium, meaning it helps create a bond between the<em> transducer and the skin. </em>
Ultrasound waves cannot travel well enough through the air which is why the gel is applied in order to reduce air space between the skin and transducer, thus allowing a good quality image to be developed.
