Something is 100 nanometers in diameter.
in regard to their relative size, the described objects are
a. smaller than all known eukaryotic cells
b. approximately the size of a typical coccus bacterium
c. larger than a human red blood cell corpuscle
d. larger than all known bacteriophages

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .