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
Neko [114]
3 years ago
15

Peppered moths come in two colors, black and white. What did Kettlewell show, with regard to peppered moth populations and tree

coloring? (Recall that England at the time was heated mainly by coal in urban areas.) A) In smoggy areas, dark moths have a higher survival rate than white moths. B) White moths stand out in rural areas, and quickly disappear from those areas. C) The black moth and white moth forms were actually two different species of moths. D) Environmental conditions do not affect physical features of a species over a short time period.
Chemistry
2 answers:
Norma-Jean [14]3 years ago
5 0

Answer is: A) In smoggy areas, dark moths have a higher survival rate than white moths.

The light moths will be captured by predators more easily than the dark moths, and the population of dark moths will rise.

This is example of natural selection and adaptation.

Predators will easily capture white moths and their population will drope.

Moth populations can survive in a variety of different situations, because the environment is constantly changing and different alleles are favored.  

Vera_Pavlovna [14]3 years ago
4 0
A is the answer because the trees turned blackish from the coal so moths that were black could camouflage on those trees easier.
You might be interested in
Match the following terms with their definitions:
stepan [7]
Hi,

Homogeneous mixture 2
Heterogeneous 3
Mixture 1
Solution 5
Compound 4
6 0
3 years ago
Read 2 more answers
What mass of salt (nacl) should you add to 1.48 l of water in an ice cream maker to make a solution that freezes at -13.4 ∘c ? a
blagie [28]
Answer is: mass of salt is 311,15 g.
V(H₂O) = 1,48 l · 1000 ml/l = 1480 ml.
m(H₂O) = 1480 g = 1,48 kg.
d(solution) = 1,00 g/ml.
ΔT(solution) = 13,4°C = 13,4 K.
Kf = 1,86 K·kg/mol; cryoscopic constant of water
i(NaCl) = 2; Van 't Hoff factor.
ΔT(solution) = Kf · b · i.
b(NaCl) = 13,4 K ÷ (1,86 K·kg/mol · 2).
b(NaCl) = 3,6 mol/kg.
n(NaCl) = 3,6 mol · 1,48 kg= 5,328 mol.
m(NaCl) = 5,328 mol · 58,4 g/mol = 311,15 g.

5 0
3 years ago
Read 2 more answers
HELP WITH A THESIS STATEMENT
lina2011 [118]

The second thesis statement is perfect. It supports the claim and presents main idea.

4 0
3 years ago
A compound is known to consist solely of carbon, hydrogen, and chlorine. Through elemental
OleMash [197]

Answer:

the empirical (lowest raios) is

C2H4Cl    

Explanation:

A compound is known to consist solely of carbon, hydrogen, and chlorine. Through elemental analysis, it was determined that the compound is composed of 24.27% carbon.

What is the empirical formula of this compound?

the compound has ONLY C, H, and Cl

the % Cl  = 100% - 24.27% -4.03% = 71.7%

in 100 gm, there are 71.7 gm Cl, 24.27 gm C, and 4.03 gm H

the number of moles are Cl=71.7/70.91 =1.01= ~ 1

                                          C = 24.27/12.0 = 2.02 =~ 2

                                           H = 403/1.01 = 3.97 =~   4

so   the empirical (lowest raios) is

C2H4Cl      

                                 

                               

3 0
3 years ago
A solution is prepared by mixing 38.0L of pyrimidine and 442.0L of water. What is the percent volume of pyrimidine in this solut
klasskru [66]

I have the same question and cant still answer it so I need the answers

0 0
3 years ago
Other questions:
  • In ancient times, what would the Moon have looked like from the Earth?
    14·2 answers
  • What are formed when particles in solar wind travel along lines of Earth's magnetic field and collide with gas atoms?
    11·1 answer
  • Please help ASAP.
    14·1 answer
  • what happens to the water level of water when you heat it and then set it aside for it to cool? what will happen THIS IS URGENT
    12·1 answer
  • At 25 °C, what is the hydroxide ion concentration, [ OH â ] , in an aqueous solution with a hydrogen ion concentration of [ H +
    5·1 answer
  • Write a story of your life when you were hurted by someone whom you trusted blindly...​
    8·1 answer
  • Help me with this please I need the answers ASAP
    12·1 answer
  • Which wave has more energy, the wave at the transmitter or the wave at the receiver? Explain your answer.
    7·2 answers
  • this is so CONFUSING WTH anyone kind to help with those two questions just answer how much you know, I’ll still brainlist it’s u
    8·1 answer
  • Which answer best describes what is happening in the following redox reaction?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!