Which glands function to keep the skin and hair soft?
Sebaceous glands
Sweat glands
Arrector pili
Endocrine
A. Sebaceous glands
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Chlamydiae are incapable of producing many key metabolites, for which they must rely on their host.
Answer the following statement true (T) or false (F)
An action potential is self-propagating and does not weaken with distance. How is the action potential self-propagating?
What will be an ideal response?
Reciprocal innervation of reflexes between antagonistic muscle pairs
a. is the usual basis of coordinated contractions. b. is the means by which rods prevent cones from being stimulated. c. refers to the lens adjustments that bring about precise focusing onto the retina. d. explains the mechanism for the operation of the calcium pump. e. is a protective function only.
A dihybrid cross is a cross that involves two pairs of contrasting traits. Mendel's law of independent assortment can be used to predict the genotypes and phenotypes of the offspring produced in such a cross. Which of the following is an example of a dihybrid cross?
A) AABB x AABB B) aabb x aabb C) AaBb x AaBb D) Aa x Aa