Describe the environmental water cycle.
What will be an ideal response?
Water vapor evaporates from the surface of the oceans and is transported across land in the atmosphere. When the air cools, the water vapor condenses, falling as rain or snow on the land. Water flows into lakes and rivers, and eventually makes its way back to the oceans.
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Charles and Francis Darwin concluded from their experiments on phototropism by grass seedlings that the part of the seedling that detects the direction of light is the _____
A) tip of the coleoptile B) part of the coleoptile that bends during the response C) base of the coleoptile D) cotyledon E) phytochrome in the leaves
The structure/shape of the plasma membrane is determined by __________
a. phospholipids b. phospholipids and cholesterol c. the cytoskeleton d. proteins embedded in the bilayer
Which of the following are capable of converting light energy to chemical energy?
a. chloroplasts b. mitochondria c. leucoplasts d. peroxisomes e. Golgi bodies
For the purposes of this question, assume that being Rh+ is a consequence of D and that Rh- individuals are dd. The ability to taste phenylthiocarbamide (PTC) is determined by the gene symbolized T (tt are nontasters)
A female whose mother was Rh- has the MN blood group, is Rh+, and a nontaster of PTC, and is married to a man who is MM, Rh-, and a nontaster. List the possible genotypes of their children. Assume that all the loci discussed in this problem are autosomal and independently assorting.