1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Makovka662 [10]
3 years ago
15

Variation in a trait is a required condition for natural selection to act on a population for that trait. Assuming a population

of organisms started with only one form of a trait, what are two ways variation in the trait could be introduced into the population? Explain your answer.
Biology
1 answer:
iVinArrow [24]3 years ago
7 0

Answer:

1. Mutation

2. Epigenetics

Explanation:

1. Mutation occurs when there is a change in an organism's DNA sequence as a result of mistakes in DNA replication or as a result of environmental factors like smoking. The mutation in a single organism can be passed on to other generations hence causing a genetic variation in the population, this obeys the Darwin's law that inherited traits (genetic) are passed on to other generations

2. Epigenetics are changes in gene expression that doesn't involve changes in the DNA sequences unlike mutation. This changes can be passed on to other generations and hence cause a variation in the population. This obeys the Lamarckian evolution that acquired traits are passed on to other generations.

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke.

You might be interested in
Describe how cohesion and adhesion work together to allow soil to "hold" water
Slav-nsk [51]

it allows them to hold water bc if it is solid


8 0
3 years ago
What do the tympanic membranes do for the frog?
BabaBlast [244]
A tympanic membrane, (is also called a tympanum), is the circular patch of skin directly behind the frog’s eye that we commonly call an eardrum. It functions much like our’s does.

The tympanum sends sound waves to the middle of the war then to inner ear, which allows a frog to hear both in the air and below water.
7 0
3 years ago
The axial Skeletonwitch all of the other bones of the skeleton are connected to that of skeleton​
Ivan

Answer:

The axial skeleton includes all the bones along the body's long axis. ... The axial skeleton includes the bones that form the skull, laryngeal skeleton, vertebral column, and thoracic cage. The bones of the appendicular skeleton (the limbs and girdles) “append” to the axial skeleton.

Explanation:

5 0
3 years ago
Where are proteins made
o-na [289]
As soon as the mRNA reached in the cytoplasm, it is fastened up by tiny protein-assembly mechanisms which is known as ribosomes. These attached ribosomes create proteins that will be castoff in the cell and proteins prepared for spread out of the cell.
3 0
3 years ago
Read 2 more answers
Can a species switch from being an r-species to a K-species or visa versa?
patriot [66]

Answer:

as causas de las extinción de una especie pueden ser muchas, como la destrucción de su hábitat natural, la caza o captura de animales exóticos, la contaminación, la deforestación (la desaparición de los bosques por la tala de árboles) o el cambio climático, que son consecuencia de la intervención de los seres humanos. Aunque esto también puede relacionarse con distintos fenómenos naturales como inundaciones, incendios, o la llegada de enfermedades.

Explanation:

En algunas ocasiones y por diferentes motivos, las especies de animales empiezan a desaparecer, y esto se conoce como extinción. A pesar de que escuchamos esta palabra muy a menudo, alguna vez te has preguntado, ¿por qué una especie se extingue y qué pasa cuando esto sucede?

7 0
3 years ago
Other questions:
  • Where do benthos organisms live
    9·2 answers
  • If people planted huge numbers of trees and other plants how might the carbon dioxide levels change?
    11·1 answer
  • How can both parents be tall, even though their genes for height are not exactly the same?
    7·1 answer
  • Why do cells in different organs have different functions
    12·2 answers
  • Sonny took 16 seconds to finish a 100 m race . what was sonny 's average speed in the race ? give your answer decimal form
    10·1 answer
  • Using a compound light microscope worksheet
    7·1 answer
  • What can you infer about a species that has a random pattern of distribution over space? A uniform pattern?
    5·1 answer
  • ____ plants contain lignified conductiing cells
    7·1 answer
  • Lysosomes are organelles that contain enzymes. Which of the following is a function of lysosomes?
    9·2 answers
  • Compare the costs and benefits of living in a group of animals.​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!