When "matching" a donated organ or tissue to a recipient, it is necessary that the ________ of the donor and the recipient be as similar as possible
A) blood type
B) T helper cells
C) antibodies
D) APCs
E) MHCs
Answer: E
You might also like to view...
Cells that comprise ____ tissue have gap junctions, a single nucleus, and many mitochondria; in addition, this tissue is
striated and functions involuntarily.
a. skeletal muscle b. smooth muscle c. cardiac muscle d. striated columnar epithelium e. more than one of these
The earliest photosynthetic autotrophs were probably:a
similar to the green and purple sulfur bacteria of today. b. first formed about 1 billion years ago. c. the first organisms to release oxygen. d. obligate aerobes. e. fermenting heterortrophs
A cell encounters a change in its environment (electrical or heat) that could be fatal. However, it is able to respond in a protective manner because this information is sent indirectly through the cell membrane to the nucleus where it stimulates the appropriate response. This is more likely a process known as
A. active transport. B. chemomodulation. C. phagocytosis. D. signal transduction.
Propose reasons why major extinction events (or explosions of life-forms) are good dividing lines for the geologic timescale. Support your answer
What will be an ideal response?