1.), missing links
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Answer:
<u>C. the types of cells and the tissues in which they can be found in a plant.</u>
<span>B is the right answer. Gentoo and Emperor penguins employing different mating rituals is an example of behavioral isolation. Behavioral isolation is the umbrella term for a host of differences between species, although in the case of different mating behaviors this variety of behavioral isolation is intended to prevent cross-breeding between different members of the same species in the same environment.</span>
Ocean waters has its own level of density which depends of the climate, temperature and most of all the location where it came from. The more the ocean water absorbs heat the more its density as a result it rises above from cold to hot. So the the water from the Antarctica usually is less dense and then become more dense when it goes to the equator which is more hot.