Describe at least 3 functions of bioluminescence in deep-sea fishes
What will be an ideal response?
Deep-sea fishes use bioluminescence for a variety of purposes. Some fishes that live in the mesopelagic realm may use bioluminescence as a means of countershading in order to prevent predation or to hide from prey. In dark waters, bright, sudden flashes of light may be used to startle predators and prey. Light may also be used as a means of attracting prey, as in the deep-sea angler fishes that use a light organ as a lure. Light organs may be useful in attracting mates in the dark deep sea where mates are few and far between. In this regard, producing light in a special pattern on one's body can be useful in species-specific identification as a means of discriminating between potential mates or finding members of one's own species for schooling purposes.
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In eukaryotic cells, the oxidation of pyruvate occurs in:
A. the cytoplasm. B. the nucleus. C. the matrix of the mitochondria. D. the endoplasmic reticulum. E. vacuoles.
A unique characteristic of plant cells is their
a. ability to photosynthesize. b. ability to carry out cellular respiration. c. ability to continuously grow and generate new organs throughout their life cycle. d. ability to form defensive compounds. e. ability to protect themselves through movement
Which of the following is the most fatal
genetic disorder in the United States?
a. cystic fibrosis b. Huntington’s disease c. sickle cell anemia d. anhidrotic dysplasia e. fibromyalgia
Pacific salmon migrate upstream and after breeding, soon die. They are termed
A) iteroparous. B) semelparous. C) dioecious. D) monoecious.