The answer is true . Many soils can be distinguished from other samples by their color or texture
Answer:
False
Explanation:
It's good method so you don't use your important money or use all of your money .
Answer:
false
Explanation:
just because
(B) Species thought to be related through evolution from a common ancestor show many anatomical similarities.
(C) The stages of embryological development in animals are quite similar among highly diverse types of organisms.
(D) Similarities in chromosome structure, DNA sequence, and amino acid sequence suggest relationships among organisms descending through evolution from a common ancestor.
(E) The most well adapted individuals do not always produce the most fit offspring.
What are the roles of allolactose in the lac operon and tryptophan in the trp operon?
The function of allolactose in regulation of the lac operon is that the allolactose acts as an inducer. Tryptophan acts as a corepressor that causes the trp repressor to bind to the trp operon and repress transcription.
Answer: A) allolactose acts as an inducer and tryptophan acts as a corepressor.
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Answer: A magnet has two poles that is north pole and south pole. From the directional property of the magnet, we know that whenever a magnet is freely suspended, it is always aligned along the north and south direction of the earth.
It can also be identified using a test magnet whose poles are already known. From attraction property of magnet, we know that unlike poles attract with each other and like poles repel each other. Therefore, the pole of unknown magnet that attract to the south pole of the known magnet will be north pole and the other will be south pole.
Thus, by freely suspending the magnet and by using a test magnet, the unmarked poles of the magnet could be easily identified.
B. Two oxygen atoms
C. Sodium and bromine
D. Fluorine and chlorine
Answer:
Sodium and bromine
Explanation:
Ionic bond is a type of chemical bond and binds the chemical molecules together. Ionic bond is formed by the transfer of electrons from an electropositive element ( metal) to the electronegative element (non metal).
Sodium is an electropositive element and contains one positive charge. Bromine is an electronegative element with a single negative charge over it. Sodium gives the electron to bromine and results in the formation of ionic bond.
Thus, the correct answer is option (C).