The fact that the average human birthweight remains at about seven pounds is due to
a. modern prenatal care.
b. the forces of stabilizing selection.
c. conscious effort on the part of mothers.
d. the limitations of food sources.
e. selection tendencies moving in the direction of increasing birthweight.
b
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A karyotype is an image of _____ from of a single cell
a. base sequences b. chromosomes c. hereditary information d. clones e. nucleus
Which phase of meiosis is illustrated in this diagram?
a. prophase
b. prometaphase
c. prophase I
d. prometaphase II
Which of the following responses is NOT controlled
by plant hormones? a. the growth form of the plant (apical dominance) b. the beginning and ending of dormancy c. the bending of an oat coleoptile toward light d. the production of glucose by the chloroplast e. the formation of abscission zones
What is the Haber-Bosch process?
A) a farming technique B) process for creating fertilizers C) process for organic farming D) use of burning in agriculture