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Temka [501]
3 years ago
15

Discuss the importance of fossil records in identifying the level of evolution took place in the planet earth

Biology
1 answer:
balu736 [363]3 years ago
7 0

Answer:

Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today. Paleontologists can determine the age of fossils using methods like radio metric dating and categorize them to determine the evolutionary relationships between organisms

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Know what makes a solution acidic or basic (the pH number and the ions).
Brrunno [24]

To determine whether an acidic or basic solution, it is first necessary to compare the concentrations of the hydronium (H3O +) and hydroxide (OH-) ions in the solution.

In acidic solution, the concentration of H3O + ions is higher than that of OH- ions.

  • In acidic solution, the concentration of H3O + ions is higher than that of OH- ions. Such a solution can be achieved by adding a small part of the H3O + ions, for example. Acid solutions have a pH below 7, the further away from 7 the pH of the solution is the higher its acidity content.  According to Le Chatelier's principle, when a disturbance is caused to an equilibrium system, it tends to readjust in order to diminish the effects of that force. This means that if an acid is added to water, the H3O + ions will be in excess and the equilibrium will shift in the opposite direction to the left. Then these excess ions will react with the OH- ions. Thus, the concentration of OH- ions will decrease and the solution will become acidic.
  • In basic solutions, the concentration of OH- ions is higher than that of H3O + ions.  If we add a base to the water, it means that we will be adding OH- ions and, as explained in the previous section, by Le Chatelier's principle, the equilibrium of the water selfionization reaction will shift in the opposite direction, and the excess ions will react. with the H3O + ions, decreasing their concentration and making the basic solution.  Basic solutions have a pH greater than 7, the farther from 7 and closer to 14 the pH of the solution, the higher the basification content.

8 0
2 years ago
Do you think Peacocks would be in Hardy-Weinberg Equilibrium? Why or why not?
Slav-nsk [51]

Peacocks would not be in Hardy-Weinberg Equilibrium

Explanation:

This can be justified by the mating patterns of the female peacocks. They do not choose their mates randomly but look out specifically for bright attractive plumage in their male partners and then select them.

Hardy-Weinberg's Equilibrium of evolution mechanism was based on facts like random mating, no natural selection,  mutation, absence of gene flow, and infinite population size.

They stated that organisms mate randomly with each other without any specific or a particular preference in the phenotypes of their opposite mates

4 0
3 years ago
Do you think each country’s government should spent more money on research in biotechnology?and why?
fgiga [73]
Yes so that we have better technology
3 0
3 years ago
Read 2 more answers
In the context of an explanation of how human growth occurs, a student is explaining to a colleague the necessity and roles of d
rewona [7]
<h2>Messenger RNA </h2>

Explanation:

Messenger RNA results from the breakage and recombining of DNA strands that is known as transcription

  • Transcription always starts at a specific site called promoter
  • Promoter are specific sites on DNA where RNA Polymerase binds and initiates transcription
  • Synthesis of RNA occurs in 5'-3' direction and continuous
  • Only a strand of DNA act as template, template is also known as antisense strand or non coding strand  
  • The complementary strand is the sense strand or the coding strand
  • Only a small segment of DNA is transcribed at a time generally called gene
7 0
3 years ago
The correct order of movement of proteins through the golgi apparatus is
ziro4ka [17]

Answer:

rough ER → ER-to-Golgi transport vesicles → Golgi cisternae → secretory or transport vesicles → cell surface (exocytosis)

Explanation:

Proteins go through the secretory pathway.

6 0
3 years ago
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