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Likurg_2 [28]
3 years ago
11

What do the brackets around a chemical mean, like for [h + ]?

Biology
1 answer:
jeka943 years ago
3 0
The brackets around a chemical formula represents or means the molar concentration of the given compound or element. For example; [H+] means the molar concentration of hydrogen ions, [H2O] means the molar concentration of water molecules, [NaCl] is the molar concentration of sodium chloride, and so forth. 
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The endosymbiosis theory states the orgin of the eukaryotic cells began when
skelet666 [1.2K]

Answer:

The correct answer is B. Prokaryotic cell consumed a smaller cell.

Explanation:

Endosymbiosis theory says that the origin of eukaryotic cell happens when a bigger prokaryotic cell consumer a smaller prokaryotic cell but the bigger cell did not consume the smaller cell rather these two cells remain in symbiotic association with each and later evolved as a eukaryotic cell.

The evidence of this theory can be seen in eukaryotic cells in the form of mitochondria and chloroplast in animal and plant cells. These two organelles are very closely related to today's prokaryotic cells.

Both the organelles have their own circular genome enclosed in double membranous structure and 70s ribosomes which resembles the bacterial cell. Therefore, the correct answer is B. Prokaryotic cell consumed a smaller cell.

7 0
4 years ago
3. Which of the following shows a kinetic energy ?
bonufazy [111]

Answer:

we can't answer there are not following

8 0
3 years ago
The plant below is purebred for height tall. Write the alleles of this plant. In any cross for height, what kind of Offspring wi
Tomtit [17]

Answer:

TT

All tall

Explanation:

If an organism is purebred, that means it is homozygous. That means, it contains two copies of the same allele (trait) at this particular gene. Lets denote the tall allele as T. That means the plant is TT, and purebred tall.

No matter what genotype (i.e. what 2 alleles) another plant has, the offspring will always be tall. That is because it will always inherit one T from the TT parent. Even if we cross it to a tt plant, all the offspring would be Tt. They would be heterozygous, but they would be tall.

5 0
4 years ago
Fruit flies have a diploid number of 8 and have a diploid number of 32. In which case will crossing over have greater impact on
Dovator [93]

Answer:

Diploid cells are like daughter cells coming from a mother cell called a haploid cell. So the more daughter cells are born, the greater the chance of getting hybrids and creating more diversity on the genetic races existing. In this case, the answer would have to be honeybees.

Explanation:

7 0
3 years ago
What does the term acid mean?
labwork [276]

Answer:

a substance that has a ph level less than 7

Explanation:

4 0
4 years ago
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