Marsupials include the:a
cat.
b. armadillo.
c. opossum.
d. crocodile.
e. spiny anteater
C
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Which of the following is a difference between Class I and Class II major histocompatibility complex (MHC) proteins?
A) Class I MHC proteins can be found on most cell types, while Class I and II MHC proteins are found on the antigen presenting cells of the immune system B) Class I MHC proteins are added to antigens in the cytoplasm, while Class II proteins are added to antigens in the Golgi apparatus. C) Class I MHC proteins signal the immune system to activate the cell displaying the message, while Class II proteins signal the immune system to destroy a particular cell. D) Class I and Class II MHC proteins have the same basic role, but individuals with particularly strong immune systems will have both types, while most individuals have just one or the other.
A person who has lost a large amount of blood but is still alive is found in a wrecked automobile under a highway bridge. Several people are helping the paramedics load the victim into the ambulance. After the ambulance has departed for the hospital, you overhear the following conversation from the persons who helped the paramedics. "I am certain that when that guy gets to the hospital, they will transfuse him with any blood that they have in the blood bank since he has lost so much blood." The other person says, "Yeah, I bet you're right!" Having had a biology course, you know which blood could be safely given to anyone. Select it below.
A. A B. B C. AB D. O
________ is marked by striking motor disturbances, ranging from muscular rigidity to random motor activity.
Fill in the blank(s) with the appropriate word(s).
Which of the following is not a characteristic of cancerous cells?
A) contact inhibition B) unusual shapes and sizes C) immortality D) All of the above are characteristics of cancerous cells.