In seed plants the sporophyte has been greatly reduced in size and is typically just a few cells.
Answer the following statement true (T) or false (F)
False
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Mitotic cell division in unicellular eukaryotes can result in a cell that is:
A. 1n. B. 2n. C. Either 1n or 2n, depending on whether the organism predominantly exists as a haploid cell or a diploid cell.
Answer the following statements true (T) or false (F)
1. Perception of salty tastes occurs at the level of the taste bud. 2. Death of hair cells resulting from repeated exposure to loud noises is thought to be caused by metabolic "exhaustion" of these cells from continuous activation. 3. The lateral line system of fishes functions to detect vibrations in the water around them. 4. The most common defect in color vision, termed red-green color blindness, results from a faulty opsin gene. 5. Compound eyes in invertebrate animals are composed of many smaller ommatidia.
If you contrast the salt and water balance adaptations of freshwater and saltwater fishes, you find that
A. freshwater fishes do not drink water. B. saltwater fishes do drink water. C. freshwater fishes actively transport salts into their bodies at the gills. D. saltwater fishes actively transport salts out of their bodies at the gills. E. All of the choices for this question are correct.
Helper proteins that assist in protein folding are called ____
a. snRNPs b. chaperones c. ribosomes d. spliceosomes e. polysomes