Through which of the following media can sound waves travel?
a. air and solids only
b. air, water, and solids
c. air and water only
d. water and solids only

Ecosystems involve living organisms interacting with non-living things in a productive way; how is photosynthesis an example of this? answer, i will give brainiest to first person to get it right.

What is the compliment dna strand to the following sequence: ttgactaggcta

Why is taking care of yourself a time management techique