To Edward Forbes is attributed the idea that:
a. life could not survive in the deep ocean.
b. life occurs throughout the ocean depths.
c. continents drift upon the earth's mantle.
d. the mid-Atlantic rift ridge is a result of continental drift.
e. "dead zones" occur in oxygen-depleted coastal waters.
A
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Water has fewer hydrogen atoms than lemon juice and a pH of around 7. Predict what will happen to the pH level of water when lemon juice is added.
A. The pH will become higher. B. The pH will become lower. C. The pH will remain the same. D. There is not enough information to decide.
A human mother’s genes seem to influence brain development while a human father’s genes seem to influence growth. What does this imply?
A. The mother imprints her brain development genes and the father imprints his growth genes. B. The mother imprints her growth genes and the father imprints his brain development genes. C. Mothers and fathers both imprint brain development genes. D. Brain development genes are present in the mitochondria, while growth genes are present in the nucleus. E. Brain development genes are on the X chromosome and growth genes are on the Y chromosome.
The physical basis of life is/are ____________
a. carbon b. water c. carbon and water d. carbon, water, and silicon
Amish populations in Lancaster County, Pennsylvania have high rates of a rare form of dwarfism. The recessive allele that codes for this disorder is found in 1 of 14 individuals in this Amish population, in contrast to 1 in 1,000 in the general population. In Ohio, an Amish population suffers with higher than normal rates of cystic fibrosis and a host of other genetic diseases so rare that some have not yet been named. What factors have caused such severe genetic problems in these two communities?
What will be an ideal response?