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Volgvan
3 years ago
6

Native mammals found in Australia are marsupials. There are no naturally occurring placental mammals, which suggests that Austra

lia broke away before placental mammals evolved. Which geological theory explains this phenomenon?
Biology
2 answers:
Reptile [31]3 years ago
5 0
I’m not certain, but I believe it is continental drift
solmaris [256]3 years ago
3 0

Answer:

The Continental drift theory

Explanation:

The Marsupials are the mammals that are mostly found in Australia and America and are characterized by the presence of a pouch that is attached to their body.

These mammals evolved from the reptiles and present abundantly in the Cenozoic era, after the extinction of dinosaurs. But they first appeared during the time of existence of dinosaurs. The continents of Australia and America eventually got separated before the naturally occurring placental mammals could evolve. This suggested a piece of evidence for the continental drift theory.

This theory describes that the continents float across the large oceans from one place to another with respect to the fixed poles.

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O QUE É UM CLONE? EXPLIQUE COMO OCORRE A CLONAGEM EM MAMÍFEROS.
Pavlova-9 [17]

Answer:

A clonagem é a obtenção de duas células idênticas com o mesmo código genético que o produto da reprodução assexuada.

Nos mamíferos, a clonagem ocorre através de células somáticas, onde há um núcleo doador e um oócito que se unem por meio de um choque elétrico, formando o embrião que resultará em um ser vivo clonado, um exemplo de essa era Dolly, a ovelha.

Explanation:

Na clonagem de mamíferos, o embrião é responsável por ter caracteres da ovelha doadora, ou seja, será a imitação do código genético desse animal que empresta a célula doadora ao úbere.

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3 years ago
Which type of electromagnetic radiation is the primary cause of sunburns?
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5 0
3 years ago
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Explanation:

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2 years ago
There are four levels of protein structure. These figures show primary, secondary, tertiary, and quaternary protein structure. W
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Answer:

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Explanation:

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