Which Step Is Thought to Have Occurred, According to Endosymbiotic

question 80

Multiple Choice

Which step is thought to have occurred, according to endosymbiotic theory?

• A) A dependent prokaryotic cell was engulfed by an independent prokaryotic cell, allowing the dependent cell to survive within the independent host cell.
• B) A dependent prokaryotic cell was engulfed by another dependent prokaryotic cell, allowing each cell to survive with the help of the other.
• C) An independent prokaryotic cell was engulfed by a dependent prokaryotic cell, allowing the dependent host cell to survive with the help of the engulfed cell.
• D) An independent prokaryotic cell was engulfed by another independent prokaryotic cell, after which the engulfed cell lost certain functions and became dependent on the host cell.
• E) An independent prokaryotic cell was engulfed by another independent prokaryotic cell, and both continued activities independent of one another.

---

Definitions:

T Value

A t value, in statistics, is a calculated value used in t-testing to determine whether to reject the null hypothesis, comparing the observed sample mean to a specific population mean.

Posttest Score

The score or evaluation obtained after an intervention or instruction, used to assess outcomes or improvements.

Group Size

The total number of members or observations contained within a defined group or sample.

Degrees Of Freedom

A value, which is different for different statistical tests, that approximates the sample size or number of individual cells in an experimental design.