A presumptive Test presumes the pet presence of the question substance it is useful because it tells the drug is used false positive is possible meaning that the test result is positive but the substance is not present.
Answer:
Description below
Explanation:
Alcionaceans (Alcyonacea) is an order of corals that belongs to the subclass Octocorallia, of the Anthozoa class. <em>Soft corals</em> are commonly called, since they do not produce skeletons of calcium carbonate, so they do not contribute to the construction of the reefs, although they inhabit them.
The so-called soft corals and leather or leather corals, mostly meaty in appearance, have microscopic crystals of calcite in their tissues called spicules, whose function is to give consistency to the animal's tissue, in the absence of a skeleton. The shape and distribution of the spicules are the main characteristics used in the identification of genera and species of octocorals.
In addition to soft corals, this order includes gorgonians, which replace the skeleton of hard corals, Scleractinia order, by semi-rigid structures composed of calcite and / or a substance they generate called gorgonin.
Answer: Deoxyribose
Explanation:
The Deoxyribonucleic acid is the genetic material found in all the living organism.
The genetic information is transferred in the form of codes from one generation to another in the from of DNA.
The DNA consists of sugar, nitrogenous bases and phosphate group. The sugar part is ribose sugar which is a type of pentose sugar.
Hence, the correct answer is option C
Species have similar characteristics, but they are rarely, if not never, identical; the difference between them is variation!
Hope this helps! :)
Answer: p2 + 2pq + q2 = 1
p2 = homozygous dominant gene
2pq = heterozygous gene
q2 = homozygous recessive gene