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MrRa [10]
3 years ago
13

Which of the following is true about natural selection?

Chemistry
2 answers:
xxTIMURxx [149]3 years ago
8 0

Answer:

natural selection does not cause a species to change

Explanation:

I believe that's what it is

Hunter-Best [27]3 years ago
3 0

Answer:

I am pretty sure that it is B hope this help

Explanation:

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Is it true that Organisms need water, vitamins and minerals. But they do not need salt to function.
Veseljchak [2.6K]
All organisms need water, vitamins, minerals, and salt together to balance things out.
5 0
3 years ago
PLEASE HELPPPP IM GIVING THE TEST RN
Tom [10]

Answer:

answer is c

Explanation:

single replacement

6 0
3 years ago
What periodic trends exist for electronegativity?
Anna007 [38]
The highest electronegativity is in the elements in the top left corner of the periodic table, and the lowest in the bottom right corner. Therefore, traveling up or to the left across the periodic table will increase the electronegativity 
5 0
2 years ago
The net ionic equation for the precipitation reaction that occurs when aqueous solutions of silver(i) nitrate and chromium(iii)
eduard

The net ionic equation formed is

       Ag^+(aq)+Cl^−(aq)→AgCl(s)

Chromium(III) nitrate and silver(I) chloride are the products of the balanced molecular equation for the reaction between chromium(III) chloride and silver(I) nitrate. An (s) next to the chemical formula for silver(I) chloride designates it as an insoluble salt.

      CrCl3(aq)+3AgNO3(aq)→Cr(NO3)3(aq)+3AgCl(s)

Silver and the chloride ions are the two ions that must interact to create silver(I) chloride. By designating ions as the reactants and silver(I) chloride as the product, the net ionic equation is formed.

      Ag^+(aq)+Cl^−(aq)→AgCl(s)

Ionic Equation:

In general, anions and cations react to generate a compound in a dissolved media, which is known as an ionic reaction. Water-insoluble salts are created when the ions of water-soluble salts interact with one another in an aqueous media.

To learn more about Ionic equaion click the given link

brainly.com/question/19705645

#SPJ4

3 0
1 year ago
Based on the information given about capsules, which of the following types of molecules would you suspect comprises an S. pneum
Sergio039 [100]

"Polysaccharide carbohydrate" comprises an S. pneumoniae capsule.

<u>Option:</u> C

<u>Explanation:</u>

The lengthy sequences of carbohydrate molecules, primarily polymeric carbohydrates constructed of units of monosaccharides linked together through glycosidic connections, understood as Polysaccharides. This carbohydrate can respond to water by catalyzing amylase enzymes, which generate component sugars.

A major human pathogen is Streptococcus pneumoniae or pneumococcus. The virulence is primarily due to its polysaccharide envelope, which protects it from the recipient immune response, and this has led to comprehensive study of the shell.

8 0
3 years ago
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