Which object performs a function similar to that of the human body's skin?

a. camera lens
b. house frame
c. astronaut suit
d. telephone wire

What is usually (but not always) related to the metabolic processes of living organisms in its organic form?

Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different

When the solution concentration on the outside of a cell is greater than thesolution concentrate on the inside of the cell, what type of solution is the cellwithin?