Answer:
the electron microscope
Explanation:
The first strands of DNA were observed through the electron microscope.
C 9.0 103 cubic micrometer
Water is less dense as a solid than as a liquid the answer is D
Answer:
Yes
Explanation:
Of the many functions of protein in your body, one of its most critical is supporting your immune system. The immune response protects you against harmful microorganisms, including viruses and bacteria, as well as foreign substances that might attack your defenses, such as a thorn or flames from a fire.