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USPshnik [31]
3 years ago
11

The ancestors of elephants inhabited every continent except Antarctica and Australia. But the Asian and African elephants are th

e only ones to survive. Why?
Biology
1 answer:
Natasha_Volkova [10]3 years ago
3 0
The correct answer should probably be Natural selection. Those elephants could not adapt to the environment unlike those in Asia and Africa and eventually became extinct.
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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. <em>Fossils of </em><em>Glossopteris</em><em> were discovered on </em><u><em>Africa, Australia, and Antarctica</em></u><em>. </em>

--------------------------------

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 <em>Gondwana glaciation, lithological and structural evidence, plates fitting together, and paleontological evidence</em>.

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.

<em>The correct options are A, C, and D. Africa, Australia, Antarctica.</em>

----------------------------------

You can learn more about Glossopteris at    

brainly.com/question/984155

7 0
2 years ago
Will mark brainliest
MrRa [10]

Answer:

B

Explanation:

4 0
3 years ago
Read 2 more answers
How is carbon moving between the air and found it decreasing
ratelena [41]

Answer:

Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.

The oceans, and other bodies of water, absorb some carbon from the atmosphere. The carbon is dissolved into the water.

7 0
3 years ago
Which factors can cause secondary succession in nature?
Stolb23 [73]
The answer maybe C ..
3 0
3 years ago
A biologist studied a population of squirrels for 15 years. during that time, the population was never fewer than 30 squirrels a
Oksi-84 [34.3K]
<span>a and c could be true

Animals don't have peace treaties with each other and the other two options would both allow a population to increase in size.</span>
6 0
3 years ago
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