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
marysya [2.9K]
2 years ago
12

A letter about the evidence of evolution

Biology
1 answer:
GuDViN [60]2 years ago
5 0

Answer:

I am writing this in response to a letter regarding evolution. Evolution is increasingly solid, not shaky. Darwin’s “theory” or explanation was a way of understanding what he had discovered (which did not include genes, chromosomes, DNA or nucleotide bases). Our explanations now include genetics and the commonality of mutation.  

Proofs are solid, not in question by serious scientists. Direct observation is one, which we see in the fact that this year’s flu evolved a little too far from last year’s, so flu shots are less effective this year than we would like them to be.  

Fossils tell the story well: whales with legs, dinosaurs with feathers and Tiktaalik. The latter was found in the Canadian north and is part fish, part amphibian, before there were ever any amphibians. Imperfection is a good proof: think of your useless appendix, the very bad design of your ankles, knees, and back (talk to a chiropractor about that).  You have big toes because they used to be useful thumbs for your grasping feet.

Many other animals and even plants similarly have flaws that show their evolutionary past. Two large human chromosomes reflect the coming together of two chimpanzee chromosomes each.

Hope it helps,

Please mark me as the brainliest

Thank you

You might be interested in
What are type II restriction endonucleases? Why are they
Karolina [17]

Answer:

DNA.

Explanation:

Type II restriction endonucleases always cleave at or near their recognition sites. They produce small, well-defined fragments of DNA that help to characterize genes and genomes and that produce recombinant DNAs.

7 0
3 years ago
How many amino acids cannot be made by the body
mote1985 [20]

Answer:

20

Explanation:

There you go!

8 0
3 years ago
PLEASEEE HELP!!!
DIA [1.3K]

Answer:

a

Explanation:

hope it helps

6 0
3 years ago
Read 2 more answers
Sources of the heat inside earth?
allochka39001 [22]
Sources of heat from inside earth is radioactive decay and residual heat.
7 0
3 years ago
how does codominance at the molecular level help to explain why evolutionary processes haven't resulted in the elimination fo th
Yanka [14]

Answer:

here.

Explanation:

Due to the prevalence of malaria in Africa, the allele for sickle cell anemia (HbS) provides a selective advantage. That's why it remains in the population.

A normal African person (HbAHbA), with normal haemoglobin, will not die of anemia, but will die of malaria.

An African person with sickle cell anemia (HbSHbS), with abnormal haemoglobin, will die of anemia.

A heterozygous African person (HbAHbS), with half of his red blood cells (RBCs) being normal and the other half being sickle-shaped, will neither die from anemia, nor malaria since the plasmodium will be incapable of completing its life cycle in the abnormal RBCs.

Thus heterozygous African people will grow, reproduce and pass on the HbS allele to the next generations.

8 0
3 years ago
Other questions:
  • What is the main function of the large intestine?
    12·1 answer
  • Complete digestive tract first observed in which phylum
    11·1 answer
  • What is the envelope of gas that surrounds Earth?
    8·1 answer
  • What do you think is meant by the statement “the human digestive system is very efficient at squeezing everything it can out of
    13·2 answers
  • In the article you read, the number of cases of paralytic polio went from about 2,500 per year in the 1950s to complete eradicat
    5·2 answers
  • Any idea on what it is?
    12·1 answer
  • what makes something a scientific fact? And how are scientific facts any different from other types of information
    14·1 answer
  • 4 myths about sexuality and how you might prove these are misconceptions
    10·1 answer
  • Helonly number 1ppppppppppppppoppp​
    14·2 answers
  • Answer and show proof and statements and ill give brainliest
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!