T cells, a part of our body's defense mechanism, are found in the ________ gland
Fill in the blank(s) with correct word
thymus
Biology & Microbiology
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Which are the four types of animal tissues that develop into specialized structures?
a. Nervous, muscle, connective, and epithelial b. Nervous, transport, connective, and epithelial c. Nervous, muscle, reproductive, and connective d. Nervous, muscle, reproductive, and epidermal
Biology & Microbiology
what kind of viruses are persistent chronic viral infections? (bud)
What will be an ideal response?
Biology & Microbiology
The flow of energy in the biosphere begins primarily with
A) chemotrophs. B) phototrophs. C) lightning. D) oxidized chemicals. E) high-energy electrons.
Biology & Microbiology
The presence of phenylpyruvic acid in urine is an indicator of ___________
A. heart disease D. spina bifida B. colon cancer E. more than one of these C. mental retardation
Biology & Microbiology