The optic nerves from each eye cross at the optic chiasm, so all visual information from the right eye is received by the left side of the brain.
Answer the following statement true (T) or false (F)
False
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Where are germinal centers located?
A. Thymus B. Spleen C. Lymphatics D. Lymph nodes E. Tonsils
answer the questions below:
A. Define stem cells and differentiation, and describe the different types and the extent to which they are present during the life of an individual (include the fertilized egg as well as the adult that eventually results). B. Which of the four tissue types contain populations of stem cells of known function, and what is that function? Which types of tissue have stem cells of unknown function? Do any types of tissue lack stem cells? C. How do fully differentiated cells differ from stem cells? How can stem cells be used in medical treatment? Give examples.
Which of the following statements characterizes bones and bone tissue?
A) It can undergo remodeling during life. B) It can be changed by hormonal stimuli. C) It contains openings for nutrient blood vessels. D) It may have both compact and spongy regions. E) All of the answers are correct.
Various types of macrophages are derived from
A) lymphocytes. B) monocytes. C) neutrophils. D) eosinophils. E) basophils.