Which statement best describes red blood cells?
A) Red blood cells possess a protein known as hemoglobin.
B) Red blood cells have a nucleus and most organelles.
C) Red blood cells live about 10 days.
D) Red blood cells form antibodies to fight antigens.
Answer: A
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Regions of the CNS where neuron cell bodies dominate constitute the ________ matter
A) white B) gray C) neural D) brain E) ganglion
The phase of the uterine cycle that begins in the days following the completion of menses as the surviving epithelial cells multiply and spread across the surface of the endometrium is the ________ phase.
A) pre-ovulatory B) secretory C) proliferative D) puerperal E) meiosis
The following substances enter cells by receptor-mediated endocytosis
A) liquids containing protein or fat B) glucose and amino acids C) Na+ and Cl- ions D) cholesterol and iron
A person who makes only anti-B antibodies can donate blood safely to a person who has only type A and Rh antigens on his/her erythrocytes
Indicate whether the statement is true or false