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OLEGan [10]
3 years ago
9

Describe examples of allopatric radiation in the madagascar-india landmasses and dusky salamanders.

Biology
1 answer:
Leokris [45]3 years ago
4 0

During Pangea, Madagascar and India were one landmass. The species of frogs were homogenous across the landmass. However, after continental drift that began approximately 88 years ago, allopatric speciation occurred to form different species on the two continents.

The dusky salamanders on the two continents that could once reproduce viable offspring 88 years ago, cannot reproduce viably today because they have diverged into two different species now.


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As a metal, lithium will lose electrons to have a ful valence shell. How manyvalence electrons will it lose to have full valence
Free_Kalibri [48]

Answer:

It will lose 1 electron

Its charge will be 1+, or simply (+)

Explanation:

Lithium it's located in the group one of the periodic table, the Alkali, and by rule, all Alkali are always gonna loose one electron during a chemical reaction to form a positive ion.

The charge is explained by the fact that, if lithium looses one electron, then it wi have less number of electrons than protons, meaning that, if there's a higher number of protons (positive charge), then the charge will be positive. And since the atom loosed one electron then its charge will be 1+

For example, during a chemical reaction calcium is always gonna loose 2 electrons, so its charge's gonna be Ca2+

6 0
2 years ago
During which type of cell division does each daughter cell contain half the amount of dna as did the cell just prior to cell div
Alinara [238K]
<span>meiosis 
This does a good job of explaining it.
https://www.khanacademy.org/test-prep/mcat/cells/cellular-division/a/mitosis-and-meiosis
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8 0
3 years ago
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Elanso [62]
Carbon goes in oxygen comes out and the oxygen goes into animals and carbon come out of animals
6 0
3 years ago
Read 2 more answers
All glands in the body, such as salivary glands and the pancreas, are derived from which type of tissue
tiny-mole [99]

Answer:

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4 0
3 years ago
Most proteins destined to enter the endoplasmic reticulum _________. Group of answer choices are transported across the membrane
Svetlanka [38]

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Begin to cross the membrane while still being synthesized-C

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Also it has been found out that when this proteins enter the Endoplasmic Reticulum, they start to cross the membrane while still being synthesized.

7 0
3 years ago
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