The answer is concrete laundry trays.
This is because as concrete trays ages with timeit becomes coarse and rugged due to water, soap and detergents. Their smoothness gradually fades with time, thus this makes it not as good regarding to health wise standards of living.
Answer:
A chromosome is tightly compacted DNA, and a gene is a section of DNA that is used to code for certain characteristics.
I don’t see statements but if you type them down I’ll answer them for you
Answer:
Answer b is the right one
They would have to experiment on the different types of plants and put them in different environments to test there's physical features but before that they have to make an hypothesis of what would happen and analyze