The answer is; Benedict’s reagent
It is used to test for reducing sugars. In presence of these sugars, the reagent, that is blue in color, turns different shaded of red (to brick red), depending on the amount of reducing sugars in the solution. It is important to note that the solution has to be heated.
In geology, a key bed (syn marker bed) is a relatively thin layer of sedimentary
rock that is readily recognized on the basis of either its distinct
physical characteristics or fossil content and can be mapped over a very
large geographic area.[1]
As a result, a key bed is useful for correlating sequences of
sedimentary rocks over a large area. Typically, key beds were created as
the result of either instantaneous events or (geologically speaking)
very short episodes of the widespread deposition of a specific types of sediment. As the result, key beds often can be used for both mapping and correlating sedimentary rocks and dating them. Volcanic ash beds ( and bentonite beds) and impact spherule beds, and specific megaturbidites
are types of key beds created by instantaneous events. The widespread
accumulation of distinctive sediments over a geologically short period
of time have created key beds in the form of peat beds, coal beds, shell beds, marine bands, black in cyclothems, and oil shales. A well-known example of a key bed is the global layer of iridium-rich impact ejecta that marks the Cretaceous–Paleogene boundary (K–T boundary). Please let me know if it works.
Answer:
Benthic Zone- bottom of ocean
Pelagic Zone- the open ocean that is not near the coast.
Oceanic zone- Zone that is beyond the continental shelf
Neritic zone- Zone that exists over the continental shelf
Photic zone- Zone where sunlight pass through
Aphotic zone- Zone where sunlight cannot pass through
Explanation:
There two important zones of the ocean that can be termed as Benthic Zone which lies at bottom of ocean or sea and Pelagic Zone that could be imagined as a cylinder or water column that goes from the surface of the sea or ocean to its bottom. At the very bottom of the sea there lies an ecological region termed as Benthic Zone.The pelagic zone can also be termed as the open-ocean zone and it is in contrast with water that is nearer to the coast or continental shelf.
There are different zones that lies within a Pelagic Zone. They are
Oceanic, Neritic, Photic, Aphotic. The zone that lies beyond the continental shelf comes under this oceanic zone and Photic and Aphotic as the name suggests it refers to light. It referes to the zones where sunlight can penetrate and can not penetrate respectively.
Answer:
Kidney disorder is responsible for the disturbance occur in the balance of the body because kidney release certain harmones which are necessary for normal growth.
Explanation: There are three harmones releases by kidney i. e. erythropoietin, calcitriol, and renin. Erythropoietin is released by kidney when oxygen level is low in the tissue. It also controls the production of red blood cells. Calcitriol harmone controls the concentration of phosphorous and calcium in the blood. Renin is responsible for the increase in blood pressure when it is needed. So if the disorder of kidney occurs, imbalance occurs in the body.
A host cell. Without a host cell, the viruses cannot survive since they don't have any chemical machinery
