Scientists reported that hurricane intensity has increased over the past 35 years, coinciding with increasing sea temperature. At the equator, the Earth receives the
A. maximum amount of solar radiation per unit area.
B. minimum amount of solar radiation per unit area.
C. maximum amount of solar radiation only over the ocean.
D. maximum amount of solar radiation only over the land mass.
Ans: A. maximum amount of solar radiation per unit area.
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When molecules diffuse, they move ________
a. down their own concentration gradient unless there are other molecules also diffusing in the vicinity b. up their own concentration gradient unless there are other molecules also diffusing in the vicinity c. up their own concentration gradient without regard to the gradients of other molecules d. down their own concentration gradient without regard to the gradients of other molecules
Somatic cell gene therapy can result in a cure for a genetic disease in an individual as well as any progeny produced by the individual
Indicate whether the statement is true or false
Maternal PKU can result in serious effects in fetuses. This problem occurs because:a
the fetus is homozygous for PKU and therefore cannot metabolize phenylalanine. b. the fetus is usually homozygous dominant and therefore has PKU. c. the mother is heterozygous for PKU and therefore cannot metabolize phenylalanine. d. the mother is homozygous dominant for PKU and cannot metabolize phenylalanine. e. the mother is homozygous recessive for PKU and cannot metabolize phenylalanine.
Gamma globulin can be given as immunotherapy to confer artificial passive immunity.
Answer the following statement true (T) or false (F)