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Anarel [89]
3 years ago
13

he island of Madagascar is located just off the SE coast of Africa, in the Indian Ocean. Scientists find species on this island

that have close biological relatives in both Australia and India. They also find that at each location there are fossils of similar organisms. What is the most likely explanation for this similarity between organisms in Madagascar, India, and Australia?
Biology
1 answer:
pogonyaev3 years ago
5 0

Answer:

The ancestor of these organisms lived on a landmass long ago that included Madagascar, India, and Australia.

Explanation:

The three, Madagascar, India and Australia were found together on a piece of land called Gondwana, which were part of the continent called Pangea, approximately 300 million years ago. Gondwana began its separation at the beginning of the Jurassic. Meanwhile, South America began to separate to the west. On the other hand, East Gondwana, which was made up of Antarctica, Madagascar, India and Australia, began its separation from Africa.

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Amoebas and euglenas can protect themselves from unfavorable conditions with a _____.
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<em>Do not pick the other answer, it is incorrect!</em>

The correct answer is:

Cyst

3 0
3 years ago
The membrane has open K channels, and changing extracellular K concentration results in a change in membrane potential. Changing
MrRissso [65]

Answer: Closed

Explanation:

At  resting membrane potential( RMP) sodium channels remained shut, this is because , previously  in depolarisation,the  voltage  gated sodium  channels  were opened for sodium to diffuse  into the Axon. However   these channels closed  after reaching their refractory period,s.

Therefore a  change  in the extracellular concentration of sodium will not  open them

3 0
3 years ago
Which type of human population is characterized by the lag phase, being able to raise crops and domesticated animals, but having
nasty-shy [4]

Answer:

Rural population.

Explanation:

The rural population of humans is characterized by the lag phase because they are linked with farming of crops and domesticated animals. This population is responsible for the soil erosion and food shortages over the country because they are the producers of everything for the food industry. Due to farming methods, soil erosion occurs that leads to the depletion of nutritive part of the soil that causes less productivity of the crop and as a result food shortage occur.

6 0
3 years ago
plz help!!! If this is a sequence of one DNA strand, what is the complementary sequence of the other DNA strand? DNA: A T T C A
gizmo_the_mogwai [7]

Answer:

T A A G T C G C T

Explanation:

DNA strand:                             A T T C A G C G A

complementary DNA strand:  T A A G T C G C T

This is a very important rule:

Four kinds of nitrogenous bases in DNA: Adnine (A), Thymine (T), Guanine (G), Cytosine (C)

And this is how they're coupled:

A = T

C = G

For example::

First DNA strand:                  A T G C

complementary strand:        T A C G

5 0
2 years ago
How does crystal size compare in extrusive vs. intrusive rock? Explain the cause of this difference
Ede4ka [16]
The difference between extrusive and intrusive rocks are how they cool down. Extrusive rocks cool down quickly and are created by lava; because of this they have very small, fine-grained crystals. Intrusive rocks cool slowly beneath the surface of the earth and are created by magma; because the cooling process is very slow the rocks have very large crystals.

5 0
3 years ago
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