Answer:
Cell theory
Explanation:
Cell theory is a universal theory proposed by three scientists namely: Theodor Schwann, Mathias Schleiden and Rudolf Virchow in the 1830's. The cell theory compose of three components:
- All living things are made up of one or more cells.
- Cells are the basic and fundamental unit of life
- All cells emanate from pre-existing cells.
Based on this question, these three components are what makes up the CELL THEORY.
It is carried on the X chromosome.
Taking this test on Gradpoint, hope I helped.
Answer:
Its cells have thick, hard walls.
Explanation:
Electromagnetic waves .
radio waves , microwaves, infrared , optical , ultra violet, xrays ,and gammarays
