Plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. ... These structures include: chloroplasts, the cell wall, and vacuoles.
Answer;
-Frames
Much like signs and symbols, frames appear natural and go largely unquestioned.
Explanation;
Framing involves the presentation and communication of a message in a particular way that influences our perception of it; frames act like signs/symbols in semiotics (once accepted, they appear natural and go largely unquestioned); also shapes our perceptions of people, places, issues, and events; veteran's "rights" versus "benefits" provide an example of this.
According to theories concerning the origin of life, the atom is likely choice for the basic element of all living things because it :
B. Is relatively stable and can form four covalent bonds
This bonds will signify stability.
hope this helps