Connective tissue is different from epithelial tissue in that connective tissue:
A) is not made up of cells.
B) has cells that are usually separated and scattered in an extracellular material.
C) has a structure called basement membrane.
D) is found only in joints.
Answer: B
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a. clades. b. DNA sequences. c. shared derived characters. d. shared ancestral characters. e. most common recent ancestor.
In humans with a very mild form of anemia, the hemoglobin molecule is affected by which of the following mutations?
A. Base-pair substitution B. Deletion C. Insertion D. Frameshift mutation E. Intron mutation
Which of the following statements about DNA libraries is true?
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Which T cell is responsible for releasing cytokines?
a. Cytotoxic T cells b. Helper T cells c. Regulatory cells d. Memory Cells