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
lora16 [44]
3 years ago
5

After the industrial revolution, dark-colored moths outnumbered light-colored moths in certain regions of england. within the pa

st 40 years, factories in these regions have added scrubbers and air purifiers to their smokestacks, and the relative number of light-colored moths has increased. the probable reason for this increase is that
Biology
1 answer:
elena-14-01-66 [18.8K]3 years ago
8 0
The reason for the increase is that the light-colored moths are no longer "selected against" by predators. These birds could only see the light ones against a sooted background. After removing the dark soot, these predators could no longer distinguish the light ones from their natural light background. Thus more light-colored moths survived to reproduce, passing on more of their recessive genes for light color to their offspring. After several hundreds of generations, most of the later generations were light, due to selective advantage of camouflage to survive predation.
You might be interested in
The theory of plate tectonics helps to explain ____.
lorasvet [3.4K]
<span>The theory of plate tectonics helps to explain the </span>formation of the earthquakes.




3 0
3 years ago
Read 2 more answers
If light intensity continues to increase, will the rate of photosynthesis increase indefinitely? why?
Goshia [24]
Maybe not because after light increases stomas will decrease and after that plant leaf will take less co2 and less co2 mean less synthesis in the plant.
6 0
3 years ago
Which staternent is one of the three parts of cell theory
DerKrebs [107]

Answer:

The Cell Theory:

Explanation:

1.cells are the basic human of structure and function of all living things

2. cells are the smallest part of a living that that is alive a keeps the organism alive  

3. all cells from from other cells

4. cells are damaged or destroyed, so they need replacing

hope this helps

5 0
2 years ago
During the systole phase of the cardiac cycle, the left ventricle contracts and blood is pumped into the aorta. Which of these v
Morgarella [4.7K]
The two semilunar valves, the pulmonary and aortic valves, are closed, preventing backflow of blood into the right and left ventricles from the pulmonary trunk on the right and the aorta on the left.
4 0
2 years ago
What is advantage of having multiple sites in dna replication?
Yakvenalex [24]
Multiple sites on the DNA during DNA replication allow the process to happen much faster than it would with a single site. 
3 0
3 years ago
Other questions:
  • Which term best describes the movement of water molecules in and out of a cell
    9·2 answers
  • This scientist is known for his work with natural selection, and he is known as the Father of Evolution.
    8·1 answer
  • Please help I am on my least favorite subject Anyone did this on eguinity before? It is where you make a dichotomous key. You ha
    15·2 answers
  • Help me please!!!!!!!
    9·1 answer
  • Despite his young age, Ruben was recently diagnosed with hypertension. He knows that reducing dietary sodium and increasing diet
    15·1 answer
  • Wich make the pear troublesome?<br>A. Sclerenchyma<br>B. Collenchyma<br>C. Parenchyme​
    13·2 answers
  • What is the relationship between light intensity and gas production?
    5·1 answer
  • . Circle the letter of each sentence that is true about the light-dependent
    8·1 answer
  • How does shotgun cloning differ from the clone-by-clone method?.
    15·1 answer
  • How many times larger than the sun is a massive star?<br> 2<br> 4<br> 6<br> 8
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!