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3 years ago

{10points} What did people invented using anatomy of frog?

1 answer:

7 0

Uigi Aloisio Galvani (Latin: Aloysius Galvanus; 9 September 1737 – 4 December 1798) was an Italian physician, physicist, biologist, and philosopher, who discovered animal electricity. He is recognized as the pioneer of bioelectromagnetics. In 1780, he discovered that the muscles of dead frogs' legs twitched when struck by an electrical spark.[1]:67–71 This was one of the first forays into the study of bioelectricity, a field that still studies the electrical patterns and signals from tissues such as the nerves and muscles.

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What is one way that recent advances in veterinary medicine has changed how we care for our pets

Vikentia [17]

We can now have life threatening tumors and surgeries to help save them.

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3 years ago

Fossils of Glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? Check

Alenkasestr [34]

Accordin to Du Toit's list supporting the theory of continental drift, the correct options are A, C, ad D. Fossils of Glossopteris were discovered on Africa, Australia, and Antarctica.

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Before answering the question, let us first review some theoretical frameworks,

• The tectonic plates theory explains the movement of the different plates based on the crust movements.

• The continental drift theory explains how these movements have been taking place for millions of years.

Alfred Wegener was the first one to state the concept of continental drift.

He proposed that once all continents were together a single big continent named Pangea, and with time, they split and separated into many pieces.

The geologist Du Toit published in 1937 a list of 10 pieces of evidence that would support the theory of tectonic plates and continental drift.

Du Toit's list includes evidence of Gondwana glaciation, lithological and structural evidence, plates fitting together, and paleontological evidence.

Paleontological evidence

• Plant and animal fossils distribution suggests the existence of a big unique continent. When reconstructing the supercontinent, the areas where these fossils were found get together in the same supercontinental region.

• Glossopteris (fern) impressions are widely distributed in determined areas of Africa, South America, India, Australia and Antarctica.

• Terrestrial vertebrate fossils also support the theory. The presence of Triassic tetrapods in all continents suggests terrestrial corridors between landmasses.

Finding Glossopteris in Australia, India, South America, Antarctica and Africa suggests that continents were once together, and these species used to live in the same region.

With time, these continents diverged and got separated by the oceans. The region where Glossopteris used to live got divided.

The correct options are A, C, and D. Africa, Australia, Antarctica.

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You can learn more about Glossopteris at

brainly.com/question/984155

7 0

2 years ago

How is a cell like a car

Neko [114]

Well a cell is like a car because each cell has a distance to go to. one cell has to drive all the way from your finger to your brain to let u know whats wrong. if there's pain or num. it also do other things to like a blood cell has to drive every part of your body to give oxygen. it has so many places to go to.

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3 years ago

What molecule is represented by the molecular model shown below?

ladessa [460]

Apparently it is ATP as deduced from the last line of text and no model to refer to.

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3 years ago

E. coli cells grown on 15N medium are transferred to 14N medium and allowed to grow for two more generations (two rounds of DNA

White raven [17]

Answer:

Option (d).

Explanation:

DNA is the genetic material of all the organism except some viruses. DNA is composed of nitrogenous base, deoxyribose pentose sugar and the phosphate group.

DNA replicatese by semi-conservative mode of replication in which one the daughter DNA consists of one newly synthesized strand and one parental strand. This mode of replication was explained by Messelson and Sthal experiment. The cells from 15N medium are transferred to 14N medium the band of intermediate density was observed. The daughter DNA consists of one 15N DNA strand and one 14N DNA strnd. This strand undergo replication in the 14N medium. This time one low density DNA band ( contains 14N - 14N DNA strand) and one intermediate density band ( 14N-15N DNA).

Thus, the correct answer is option (d).

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3 years ago