Leptin is a product of
A. the stomach.
B. the small intestine.
C. the liver.
D. the brain.
E. adipose tissue.
Answer: E
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____________________ molecules are responsible for the phenotype of an organism
Fill in the blank(s) with correct word
Why would soil and water be added to a compost pile?
A. The organisms in the soil, along with the moisture from the water, would facilitate the natural decomposition of the material in the compost pile. B. Without adding soil and water, no decomposition of the material can take place. The material would simply sit there. C. Water is the medium that photosynthetic organisms use to break down the organic materials in the compost pile. D. Soil spreads out the material in the pile. If the material is too close together, natural aeration cannot occur and decomposition stops.
After childbirth, ____ in the mother
a. oxytocin stimulates the production and secretion of milk b. oxytocin stimulates the production of milk and prolactin stimulates the secretion of milk c. prolactin stimulates the production and secretion of milk d. prolactin stimulates the production of milk and oxytocin stimulates the secretion of milk e. estrogen and progesterone are directly responsible for the production and secretion of milk
Which of the following represents a germ layer?
a. blastula b. inner cell mass c. ectoderm d. zygote