Why can plastids, like mitochondria, not live outside of the host cell?

a. They are anaerobic and cannot exist in the oxygen-rich environment outside the cell.
b. Outside of the cell, they cannot defend themselves and are quickly destroyed by predators.
c. Both of these organelles have given up many of their necessary genes to the nucleus of the host cell and cannot function without them.
d. They cannot harvest energy or store energy and need the cell for these functions.


c. Both of these organelles have given up many of their necessary genes to the nucleus of the host cell and cannot function without them.

Biology & Microbiology

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Currently, almost all foreign direct investment goes to the world's core countries

Indicate whether this statement is true or false.

Biology & Microbiology

Outline the various ways in which chromosomes can regulate how much of an enzyme is present at

any given time within a eukaryotic cell. What will be an ideal response?

Biology & Microbiology

The "Age of Fishes" is an informal name for which time period?

a. Silurian period b. Permian period

c. Devonian period d. Ordovician period e. Carboniferous period

Biology & Microbiology

A person moves outside of the United States and is getting ready for work. They want to know how to dress for the work day. The weather channel says it is 35 degrees. Of course, there that means Celsius. What is that temperature in Fahrenheit?

A. 122.4 degrees F B. 95 degrees F C. 3 degrees F D. 50 degrees F

Biology & Microbiology