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LuckyWell [14K]
3 years ago
14

What were the observations that darwin made that led to his theory of evolution?

Biology
1 answer:
katen-ka-za [31]3 years ago
5 0
Darwin made many observations which later led to his acceptance of evolution. His observations on the Galapagos islands were especially significant. There he saw the evidence of change in isolated populations. Turtles, mocking birds and finches were unique to each island even though they were obviously derived from the same mainland species. He saw first hand that environments different from the mainland had resulted in modified turtles and birds. However, the idea of evolution by natural selection<span> did not mature until after his return. The ornithologist, John Gould, pointed out to Darwin that the mockingbirds which Darwin had collected from different Galapagos Islands were so distinct from one island to another as to represent different species. This revelation seems to have led Darwin to doubt the fixity of species and to set about gathering evidence on the "transmutation of species". The theory of Natural Selection crystallized on September 28, 1838, 2 years after he returned from the voyage of the Beagle. He recounts in his autobiography that, " I happened to read for amusement Malthus on Population, and being well prepared to appreciate the struggle for existence which everywhere goes from long-continued observation of the habits of animals and plants, it at once struck me that under these circumstances favourable variations would tend to be preserved and unfavourable ones destroyed.".</span>
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Why is it beneficial to use textiles made from synthetic fibers
mestny [16]
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Natural fabrics, such as cotton, silk, and wool, are made from animals or plant based fibers. While synthetic are man made and produced entirely from chemicals to create fabrics. such as polyester, rayon, acrylic, and more. The benefits of using textiles made from synthetic fibers is that it saves the animals and plants that the fibers are based off of. 

Hope this helped :)

</span>
5 0
3 years ago
What is the weave pattern of the following
Sergeu [11.5K]

It is a method in the textile industry where two sets of threads are interwoven at the right-angles to form a cloth

<u>Explanation:</u>

<u>1.100% cotton:</u>

  • open weave.
  • easily distorted  with water and washing.
  • stretches in one direction only.

<u>2. 100% wool:</u>

  • very strong.
  • dense and compact.
  • different faces.
  • diagonal design.
  • soft and pliable.

<u>3. 100% Nylon Rope:</u>

  • Not durable.
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  • light fiction with other garments.

<u>4. 100% Spandex Nylon:</u>

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  • Tends to snag and break during wear.
  • light fiction with other garments.

<u>5. 100% cotton blend</u>

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4 0
3 years ago
A human’s knee joint is best described as
vesna_86 [32]

Answer:

A synovial joint

Explanation:

because it is highly moveable, allows for flexibility, has ligaments for stability, and has cartilage for protection of the articulating bones. ... It is a synarthrosis joint because it cannot move.

4 0
2 years ago
Read 2 more answers
In the phrase "survival of the fittest," the term "fittest" refers to:
nalin [4]

Answer:

A

Explanation:

From what I know this could be wrong, but in the four stages of natural selection, the first step is overproduction, the second step is adaptation, and the third step is competition or survival of the fittest. This means that only the organisms with the best adaptations for their surroundings will survive. COULD BE WRONG SORRY IF IT IS

7 0
2 years ago
Que pasaría si un organismo de la red trófica desapareciera
arlik [135]

Respuesta:

La respuesta más simple posible sería decir que toda la red alimentaria colapsaría y todos los organismos de la red morirían de hambre. ... Eso es porque la vida vegetal suministra la energía inicial al sistema de la red alimentaria. Sin plantas, no hay alimento para los herbívoros.

¡Espero que esto ayude!

5 0
2 years ago
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