The phylum Echinodermata , which contains about 6000 species, gets its name from the Greek, literally meaning "spiny skin." Many echinoderms actually do have "spiny" skin, but others do not. This phylum exists exclusively in the sea, and cannot be found on land or in fresh water. All echinoderms have one thing in common: radial symmetry. This means that the creatures have appendages (or body construction) which point outward from the center of the body like the spokes on a bicycle wheel. Furthermore, these appendages usually occur in multiples of five, although there are a few exceptions. There are several well known members of this group, like sea stars and sea urchins. The radial symmetry is obvious in these creatures.
I think the correct answer from the choices listed above is option B. A eukaryotic cell possesses the characteristic of compartmentalization of organelles, wherein the organelles are bound by membranes. This type of cell has a true membrane-bound nucleus and has other membranous organelles.
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Answer: C that protists are single-celled organisms
Explanation:
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The proximal tubule fluid is more hyperosmotic than the renal cortex, but this does not influence what is causing the acid-base disruption.
<h3>How does hyperosmotic work?</h3>
In the extracellular space, the first drop in temperature results in the formation of crystals, which creates a hyperosmotic environment that draws water out of the cells and causes them to contract. Organelles & biological membranes are damaged as a result of inner crystal formation as the temperature drops.
<h3>What transpires inside a hyperosmotic environment to a cell?</h3>
A cell submerged in a 10% dextrose hyperosmotic , osmotic pressure solution would initially lose area as water departs and then start gaining proportion as glucose is delivered through into cell as moisture follow by osmosis. This is because water crosses cell surfaces more quickly than solutes do.
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<span>The scientist who melted glass to simulate a microscope was Robert Hooke, in 1660. He was an English physicist, and he looked at insects and handheld objects. He named the cell for the cell of a monk, because to him it appeared to be a self-contained room.</span>
