Jul 16, 2014 · An echinoderm is an organism (all marine) that has a spiny skin. The word "echinoderm" means "spiny skin." Starfish, sea cucumbers, brittle stars, and sea urchins are …

May 18, 2018 · Yes. They lay eggs. But not all of them. The most common egg laying (also called oviparous) vertebrates are birds.

Members of Class Aves and Class Mammalia that is birds and mammals are endothermic animals/vertebrates. These organisms are able to maintain a steady body temperature. …

Dec 2, 2016 · A. "cis-3-hexene" B. "5-ethyldecane" For both molecules we find the LONGEST carbon chain. B is trying to trick into identifying the sidechains as the longest chain: clearly the …

Because the molecule has a plane of symmetry. If you cannot see it on paper, make a model. In general a carbon centre that is NOT bound to 4 different substituents is achiral.

Jul 24, 2016 · Probably to protect the spinal cord of the central nervous system Starting from radial organism , organism starts to possess bilateral symmetry (symmetrical to the right and …

Jun 8, 2016 · Stellar nucleosynthesis is the process by which the natural abundances of the chemical elements within stars change due to nuclear fusion reactions in the cores and …

Oct 10, 2014 · This gives a parabola sitting on the vertex and curving upward, with axis of symmetry on the vertical line x=3. By the way this example also has roots (x-intercepts) at …

Feb 27, 2016 · Draw the circle with center at polar (5/2, 0) and radius 5/2. r = d costheta represents the circle with center at ( d/2, 0) and radius d/2. Rotation of this circle through pi/2, …

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