Answer:
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Ptolemy was the first person in proposal a geocentric model of Universe.
Copernicus was the first person in proposal a heliocentric model of Universe.
Kepler´s first law: the orbit of a planet is an ellipse with the Sun at one of the two focuses.
Kepler´s second law: a line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time.
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The answer is coevolution.
<span>Coevolution is a change in one species that results from a change in another species that it interacts with. In our example, a change in an insect results from a change in a plant that the insect interacts with. Since the plant have changed, the insect must change as well in order to survive. </span>
The giraffe head is higher than its heart so the blood pressure in the head must be lower than in the heart. The pressure is directly related to the density, gravity, and the height. The calculation would be:
<span>P = ρ*g*h
</span>P= 1.05* 10^3 kg/m3 * 9.8m/s2 * 2m= <span>20 580 pascals= 20.58 kpa</span>
Algae: any of numerous groups of chlorophyll-containing, mainly aquatic eukaryotic organisms ranging from microscopic single-celled forms to multicellular forms 100 feet (30 meters) or more long, distinguished from plants by the absence of true roots, stems, and leaves and by a lack of nonreproductive cells in the reproductive structures: classified into the six phyla Euglenophyta, Crysophyta, Pyrrophyta, Chlorophyta, Phaeophyta, and Rhodophyta.
Amboeda: any of a large genus (Amoeba) of naked rhizopod protozoans with lobed and never anastomosing pseudopodia, without permanent organelles or supporting structures, and of wide distribution in fresh and salt water and moist terrestrial environments
Asexual reproduction: reproduction (as cell division, spore formation, fission, or budding) without union of individuals or gametes
Cilia: minute short hairlike process often forming part of a fringe
Diatom: any of a class (Bacillariophyceae) of minute planktonic unicellular or colonial algae with silicified skeletons that form diatomaceous earth
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