Evaporation of ocean water and formation of sea ice both increase the salinity of the ocean. However these "salinity raising" factors are continually counterbalanced by processes that decrease salinity such as the continuous input of fresh water from rivers, precipitation of rain and snow, and melting of ice.
Answer:
I'm assuming this is fill-in-the-blank, so
The subunits of nucleic acids contain a base, a five-carbon sugar, and a phosphate group. The subunits of proteins are amino acids. Some of the subunits of proteins must come from food. DNA and RNA are nucleic acids.
These are standard definitions of the properties of nucleic acids versus proteins. These are known as the building blocks of the cell, so it's a good idea to familiarize yourself with the basics!
The control group would be the group that got liquid, not cold medicine, the control group is the group with medicine, and the experimental would be the medicine itself.
Epithelial tissue covers the outside of the body and lines organs
This type of tissue forms a layer of cells known as the endothelium lining such as skin
