The believe answer for that would be A
Answer:
so many processes requires oxygen to operate .
An example is the process of plants making their own food .
Answer:
cells, tissues, organs, organ systems
Explanation:
This is how these are organized - in terms of smallest to largest.
The correct answer is ultrasound because the ultrasound is considered use sound waves for the detection of tissue, baby and things like that.
Hope that helps
The last one.) watson and crick
