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3 years ago

An area in a forest was cleared to build a road. Which two of the following will be likely effects on the ecosystem?

2 answers:

6 0

The correct answers are "Animals will migrate to other regions in search of food" & "The new species will evolve to survive in the deforested land".

Whenever an area in a forest is cleared up to build a road or because of any other reason the habitat of the animals residing there is destroyed. So, in search of food and alternate habitat the animals start to migrate to other nearby regions. The destruction of the natural habitat will lead to the accumulation of new traits in the species which are left in the forest leading to the evolution of new species which are well fitted to live in the new environment.

Rest of the options are wrong because if the forest area will be cleared then it will lead to the decrement of trees not increase. Also, adapting the changing environment is a long term change but here they are saying the animals will immediately adapt to the new environment so this option is also wrong.

Sveta_85 [38]3 years ago

4 0

Animals will migrate to other regions in search of food and the new species will evolve to survive int he deforested land.

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2 years ago

In Drosophila, straight wings are dominant to curved wings (c), smooth eyes are dominant to sparkling eyes (spa), and tan body i

77julia77 [94]

Answer:

$\frac{1}{8}$

Explanation:

Straight wings are dominant over curved wings

Let Straight wings : H

curved wings : t

smooth eyes are dominant to sparkling eyes

let smooth eyes = H

spark ling eyes = t

tan body is dominant to ebony body color.

Again; Let tan body color be H

Let ebony color be t

If flies that are heterozygous for all three traits are crossed;

we have HtHtHt × HtHtHt

Then the selected trihybrid traits for the cross will be (HHH,HHt, HtH, Htt, tHH, tHt, ttH, ttt)

We will realize that from the punnet square in the diagram below, the proportion of the offspring would you expect to be heterozygous for all three traits (i.e HtHtHt) is asterisk in the punnet square and will be $\frac{8}{64}$

= $\frac{1}{8}$

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3 years ago

Predict how many genetically different offspring could be produced by outcrossing two 2n=4 individuals (just account for indepen

Llana [10]

Answer:

16 genetically different offspring

Explanation:

This is the case as each parent has the ability to produce 4 uniquely different gametes through independent assortment. With such a scenario where each parent can product 4 uniquely different gametes multiplied by 4 parents, you have 16 offspring. So there's the possibility of producing 16 offspring that are unique.

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3 years ago