You are observing a cell through a microscope and see a membrane-bound nucleus. Which type of cell is it?
A bacterium
A prokaryotic cell
A eukaryotic cell
There is not enough information
C. A eukaryotic cell
You might also like to view...
Osmometer cells in the brain sense an increase in the salt concentration of plasma. This information is sent to the hypothalamus, which notifies the pituitary gland to release the hormone, ADH. ADH causes the kidney to save water, which lowers the salt concentration of the plasma. What characteristic of life does this overall pathway represent?
A. Sensitivity B. Energy utilization C. Cellular organization D. Homeostasis E. Evolutionary adaptation
A polymerase chain reaction (PCR) copies an individual gene segment in vitro with a(n) ________ primer(s)
A) individual RNA B) individual DNA C) pair of RNA D) pair of DNA
The standard or housekeeping sigma factor used most often by E. coli RNA polymerase under normal growth conditions is called sigma ________.
A. S B. E C. 70 D. 32
Every ________ of latitude is equivalent to ________ of time
a. 5 degrees; 1 hour b. 25 minutes; 1 hour c. 15 degrees; 1 hour d. 15 minutes; 1 hour