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Vaselesa [24]
3 years ago
9

A small river forms, dividing a group of moles into two isolated populations. After many years, biologist puts moles from opposi

te sides of the river together and finds that they will not mate. What type of speciation is it?
Biology
1 answer:
Oduvanchick [21]3 years ago
5 0

Answer:

Allopatric speciation

Explanation:

Allopatric speciation is a type of speciation that takes place when a group of species are divided into two different groups which are separated from each another. In allopatric speciation, a geographic barrier such as a water body (river) or a mountain range forms and prevents the species from mating with each other. As the species are separated into two groups, each of them develops its own distinct traits based on the demands of their unique environment or the inherited traits of the group that are passed on to offspring.

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I’m having trouble understanding this can someone plz explain?
Leni [432]

Answer:

look at the pictures

Explanation:

1. If we cross the parental generation which is RR x rr, the probability of the F1 generation to get  rough coat is 100% and they will be a carrier of the recessive trait smooth coat.

Since the phenotypic ratio is 100% heterozygous Rr, in crossing the F1 to get the F2, we will use the genotype Rr. To get the F2, use the cross  Rr x Rr.

The phenotypic ration for F2 is 3:1. There is 75% to get rough coat and 25% smooth. The answer is based on the result on the Punnett square. On the other hand, the genotypic ratio is 1:2:1. There is 25% probability to get RR genotype, 50% Rr, and 25% rr.

2. Since the two parental mice got 6 albino offspring and 5 brown mice offspring, it is approximately 50%. it takes a parental mice who is Brown that is carrying an albino trait crossed with an albino to get offspring with almost the same number. Therefore, the genotype of the brown mice is Aa.

8 0
2 years ago
What are the responsibilities of the region of the brain highlighted below?
emmasim [6.3K]

Answer:

regulating important involuntary bodily2

function such as blood pressure ,heart rate,

breathing,and swallowing

8 0
3 years ago
Read 2 more answers
Which cell structure is responsible for supplying energy in both plant and animal cells?
JulsSmile [24]

Answer: Mitochondria

Explanation:

Mitochondria are rod-shaped organelles bounded by a double membrane in which the inner membrane is folded and filled with matrix. Mitochondria is present in both plant and animal cells, and serves as the power house where respiration occur and energy is released from the oxidation of simple sugar.

4 0
3 years ago
When they (green sea turtles) eat algae, which biomolecule are they getting from it? A. Carbohydrate B. nucleic acid C. protein
Degger [83]

<u>Answer:</u>    A. Carbohydrate

<em>When green sea turtles eat algae they are getting carbohydrates from it. </em>

<u>Explanation:</u>

Different sea turtles have different diets. Some are omnivores while some are herbivores. Green sea turtles belong to the group of herbivorous sea turtles.  

<em>The diet of hatchlings is different from that of the adults. Hatchlings are omnivorous and feed on mollusks and crustaceans.</em> The adult sea turtles have to scrape off algae from rock surfaces and hence has a beak shaped like the teeth of a saw.

<em>Other type of sea turtles are loggerheads and leatherbacks that mainly feed on sponges and jellyfish respectively .</em>

4 0
3 years ago
What are the monomers of Carbohydrates
natita [175]
The answer to this is Lipids, nucleic acids, proteins, glycerol and fatty acids.   
4 0
3 years ago
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