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erik [133]
3 years ago
9

What are the lines of evidence that Alfred Wegener used to support the idea of continental drift? Why did scientists of his day

doubt that continents drifted?
Biology
1 answer:
Zanzabum3 years ago
3 0

Answer:

Wegener presented a number of evidence to prove his plate tectonic theory, such as :

  • The matching of rocks on each side of the Atlantic Ocean like a puzzle.
  • His knowledge hat organisms such as freshwater reptiles were found in almost all continents
  • He also identified organisms that live in different continents, and could not possibly cross over to the other continents due to water bodies (oceans) separating the continents.

Wegener's plate tectonic theory caused doubts to other scientists, because of the way he presented his evidence. Other scientists considered his mechanisms unrealistic

Explanation:

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An anthropologist discovers the fossilized heart of an extinct animal. The evidence indicates that the organism's heart was larg
Paladinen [302]

A reasonable conclusion supported by these observations is that the animal was endothermic and had a high metabolic rate.

<u>Explanation:</u>

With reference to warm-blooded species is preferred the endothermic are the species that preserve a steady body temperature regardless of the ambient temperature. Endothermic species mainly include animal kingdom birds and mammals. Many shrimp, however are endothermic too.

If a variation occurs, i.e. if the heat produced is less than the heat loss, the metabolic rate increases to compensate for that loss. Shivering is another method used by people and many other warm-blooded organisms to boost their body temperature. But in case the heat loss is smaller than the heat produced, the process of panting or suddening occurs to increase the heat loss.

6 0
2 years ago
Which of the choices below is the parent cell for all formed elements of blood?
Ostrovityanka [42]

Answer:

The hemocytoblast  (option B) are the parent cell for all formed elements of blood

Explanation:

All blood cells are originated from a common stem cell, which is called a pluripotent stem cell. It is capable of giving rise to any of the blood cells maintaining its existence through mitosis. By dividing pluripotent stem cells, new cells are originated, which become multipotent and differentiate into lymphoid (NK cell and the polymorphonuclear cell) or myeloid cells (megakaryocite); always respecting the original quantity.

7 0
3 years ago
14) Mammalian blood contains the equivalent of 0.15 M NaCl. Seawater contains the equivalent of 0.45 M NaCl. What will happen if
slamgirl [31]

Answer:

A) NaCl will be exported from the red blood cells by facilitated diffusion.

4 0
3 years ago
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Osmosis in a sentence
KonstantinChe [14]
The diffusion of water through a cell membrane to reach dynamic equilibrium.

7 0
2 years ago
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How many electrons are in the nucleus of an atom with an atomic number of
VLD [36.1K]

None, Electrons are not in the nucleus

<em>They</em><em> </em><em>are</em><em> </em><em>pres</em><em>ent</em><em> </em><em>in</em><em> </em><em>orbi</em><em>ts</em><em> </em><em>or</em><em> </em><em>ene</em><em>rgy</em><em> </em><em>shells</em><em>.</em><em> </em>

6 0
2 years ago
Read 2 more answers
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