If you already knew that the infectious agent was either bacterial or viral, which treatment would allow you to distinguish between these two possibilities?
a) i
b) ii
c) iii
d) iv
e) either ii or iv

As soon as possible this assignment is due in 5 minutes atoms in a molecule are bonded together by sharing, gaining, or a. photons b. protons c. neutrons d. energy f. electrons

What was the land like over 500 million years ago? what was under the sea?

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?