Severe injuries and burns to the skin result in scars that are
A. produced by stratum basale keratinocytes, which effectively bind damaged skin parts together.
B. produced by chondrocytes and made mainly of desmosomes.
C. produced by fibroblasts and made mainly of collagen.
D. made by macrophages, which produce a dense granulation tissue.
E. fully functional regenerations.
C
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All lymphocytes are part of adaptive immunity
Indicate whether the statement is true or false.
In crustacean respiration, ventilation happens when water moves out of the
A) Appendages. B) Branchial chamber. C) Scaphognathite. D) Carapace.
Which of the following helps reduce internal reflection (scattering of light within the eye)?
a. sclera b. choroid c. blind spot d. lens e. iris
The breakdown of what food yields sulfuric and phosphoric acids?
a. bell peppers b. dark grapes c. mushrooms d. citrus fruits e. meat