Five Observations of Modern Cells Are Listed

question 106

Multiple Choice

Five observations of modern cells are listed.Which observation best supports the endosymbiosis theory?

• A) The nuclear envelope in eukaryotic cells consists of two membranes.
• B) Some eukaryotic cells such as human red blood cells do not have mitochondria.
• C) Mitochondria and chloroplasts cannot survive on their own when removed from their host cells.
• D) Examples exist of both prokaryotes and eukaryotes capable of carrying out photosynthesis.
• E) Mitochondria present in all eukaryotes carry out the same function.

---

Definitions:

Profit-maximizing

A strategic approach aimed at increasing a firm's profits to the highest possible level given its production costs and market conditions.

Purely Competitive

A market configuration where numerous small businesses produce the same goods and face no entry or exit obstacles.

Pure Competition

A market structure characterized by a large number of buyers and sellers, homogeneous products, and the absence of barriers to entry or exit for firms.