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iVinArrow [24]
3 years ago
12

On the third day of a 2-year-old toddler's hospitalization the nurse notes that the child, who had been screaming and crying inc

onsolably, has begun to regress and is now lying quietly in the crib with a blanket. what stage of separation anxiety has developed?
Biology
1 answer:
Nataliya [291]3 years ago
8 0
<span>The child has develop despair. During this stage the child will become less active and will show signs of sadness or depression. They will be quiet and less willing to play. After this phase the baby will become more detached and less willing to communicate.</span>
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In Drosophila, the genes for body coloration and eye size are on different chromosomes. Normal-colored bodies are dominant to eb
Yuri [45]

Answer:

225 flies

Explanation:

Let gene for body colour : A

Let gene for eye type : B

Parent 1 : normal body and normal eyes = AABB

Parent 2: ebony body and eyeless = aabb

F1 : AABB X aabb = AaBb ( all have normal body and normal eye )

F1 progeny is self crossed given that the two genes are on different chromosomes which means they show independent assortment:

AaBb X AaBb =

A_B_ = normal body, normal eyes = 9

aaB_ = ebony body, normal eyes = 3

A_bb = normal body, eyeless  = 3    

aabb = ebony body, eyeless  =   1

Hence the ratio is 9 : 3 : 3 : 1

Out of the 400 flies:

(9/16) * 400 = 225 flies have normal body colour and normal eyes

7 0
3 years ago
What was the impact of the use of fossil fuels during the industrial revolution?
IrinaK [193]

Impact of the use of fossil fuels during the industrial revolution was it made possible a huge increase in the amount of productive energy available to humans.

The development of machines, including steam engines and the internal combustion engine, made it possible to exploit vast new resources of energy stored in fossil fuels, specifically coal and oil. The fossil fuels revolution greatly increased the energy available to human societies during industrial revolution.

Contrary to this fossil fuel have some disadvantages like when fossil fuels are burned, they release large amounts of carbon dioxide, a greenhouse gas, into the air. Greenhouse gases trap heat in our atmosphere, causing global warming.  

To learn more about fossil fuel  , here

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8 0
1 year ago
What are the characteristics of eukaryotic cells but not of prokaryotic cells?
Mazyrski [523]

Answer:

I) Presence of nuclear envelope

II) Presence of membrane-bounded organelles

Explanation:

Unlike prokaryotic cells, eukaryotic cells possesses nuclear membrane and membrane-bound organelles. As a result, they undergo mitosis and meiosis.

Examples of organisms with Prokaryotic cell are bacteria, cyanobacteria

Examples of organisms with eukaryotic cells are green plants, fruitfly etc

4 0
3 years ago
Why is the outside of a fridge freezer white and shiny?
Mila [183]
To reflect beat away from the fridge.... it also keep the fridge cooler
7 0
3 years ago
Kevin is studying predator-prey interactions. One day he notices a spider eating a cricket caught in its web. Later that day, a
Brilliant_brown [7]

Answer:

Kevin has observed 2 consumers, the primary consumer, the spider, and the secondary consumer is the bird.

Explanation:

The producer in this scenario is the cricket, and the spider eats first, that's why its called the "primary" consumer.

8 0
3 years ago
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