How do nutrients reach the epidermis of the skin?
A) Blood vessels carry nutrients directly into the epidermis.
B) Nutrients migrate in vesicles from the hypodermis into the epidermis.
C) Solute pumping transports nutrients into the epidermis.
D) Diffusion transports nutrients from blood vessels in the dermis into the epidermis.
Answer: D
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Lipids
A. contain C, H, and O, but with proportionately less oxygen than in carbohydrates. B. include phospholipids, cholesterol, and fats. C. are insoluble in water. D. All of the answer choices are correct.
The daughter cells that result from meiosis I are
A. haploid and contain single-stranded chromosomes. B. diploid and contain single-stranded chromosomes. C. haploid and contain double-stranded chromosomes. D. diploid and contain double-stranded chromosomes.
Which of the abdominal wall muscles help(s) flex the vertebral column?
A. Transversus abdominis B. Rectus abdominis C. Internal oblique D. External oblique E. All of these abdominal wall muscles help flex the vertebral column.
Which of the following pairs is a correct match?
A)Osmosis: active membrane transport process B)Exocytosis: active membrane transport process C)Facilitated diffusion: active membrane transport process D)Endocytosis: passive membrane transport process