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.
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Indicate whether this statement is true or false.
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?
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
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