Skin accounts for nearly 15% of the weight of an average human.
Answer the following statement true (T) or false (F)
True
Skin is the most conspicuous system in the body and accounts for nearly 15% of the weight of an average human.
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If black fur color is controlled by a dominant allele (B) and brown by its recessive allele (b), give the
genotypes of the parents and offspring of a cross of a black male with a brown female that produces 1/2 black offspring and 1/2 brown offspring. What will be an ideal response?
Stabilizing selection occurs when
a. the environment controls which organisms will survive. b. humans determine which organisms will survive. c. the extremes of the population have a lesser chance to survive. d. the extremes of the population have a better chance to survive. e. the organisms on one extreme of the population have a better chance to survive than those on the other extreme.
Which element is a macronutrient in plants?
a. sodium b. calcium c. manganese d. zinc e. copper
Honey is a(n) (isotonic/hypertonic/hypotonic) environment, which prevents microbial growth.
Fill in the blank(s) with the appropriate word(s).