The sugar "sink" in roots is the result of
A) active transport of mineral ions into xylem cells.
B) absorption of water from the soil through epidermal cells.
C) active transport of sugars from phloem to root cells.
D) the pull of gravity on sugar molecules.
Answer: C
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Which of the following is a disease specifically caused by an autoimmune response against acetylcholine receptors?
A) Grave's disease B) myasthenia gravis C) systemic lupus erythematosus D) Hashimoto's thyroiditis E) celiac disease
Prolactin ____
a. stimulates and sustains milk production after childbirth b. stimulates labor and childbirth c. causes the development of breasts and other secondary sexual characteristics in the male d. acts in concert with FSH to produce milk e. has secondary effects on reducing the size of the uterus after birth
Which term identifies or describes these genotypes? RR / PP
What will be an ideal response?
Light rays are refracted (bent) when they cross the interface between materials with different refractive indices.
Answer the following statement true (T) or false (F)