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natulia [17]
3 years ago
13

The chief motivating factor in both anorexia and bulimia is:

Biology
2 answers:
KatRina [158]3 years ago
5 0
An overwhelming urge to be thin
Lelechka [254]3 years ago
5 0

an overwhelming urge to be thin

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PLEASE HELP!!! ASAP 30 POINTS!!
Nikolay [14]

Darwin’s research showed that finches beaks are different to fit their food source. It also started the theories of evolution and natural selection. The Grant’s research on the Galapagos Islands showed that evolution exists and can happen over a course of two years. They proved Darwin’s theories are true. Since all the plants and animals are native to the islands, they had to adapt to the new food source and climate. Beaks, size, etc. are all changes made to these organisms to be able to live on the islands. 

The Galapagos Islands are located in Ecuador and sit on the Pacific Ocean. <span>The Galapagos Islands were formed from 3 million to 5 million years ago. Volcanic eruptions typically shield volcanoes formed the islands. They are located over a “particularly hot mantel” that causes volcanic activity. The outcome of many eruptions were islands because the left overs were pushed to the surface. The Galapagos islands are pretty big reaching an area of 3,093 miles. The temperatures range from 69 to 84 degrees creating a typically warm climate. </span>

Darwin studied medicine at age 16, but became fascinated specimens around the globe. He developed theories of natural selection and evolution. While he was on the Galapagos islands, he studied thirteen different species of finches.

 He observed finches and different beak structures. He observed their ability to consume foods such as nuts, bugs, and fruit. He concluded all were related to their beaks. For example, long, slender beaks are good to reach in the flowers of a cactus.

<span>Charles concluded that the finches beaks are examples of adaptive radiation. To fit in the island, they had to adapt to the conditions. This lead to Charles’ theory of natural selection. </span>

Charles came to the conclusion of evolution and natural selection. Natural selection is the process where organisms adapt to their environment to survive and produce more offspring. Evolution is where different kinds of living organisms are thought to have developed. These theories have changed science forever and leave today’s scientists marveling of his theories.

I hope this helps:)

5 0
2 years ago
Which two microscopes generate three-dimensional images?
nekit [7.7K]
One is the scanning Electron microscope, and the other three-dimensional image microscope is the confocal laser scanning microscope.
6 0
3 years ago
Fertilization of an egg by sperm takes place in the
MArishka [77]

Answer: Oviduct

Explanation:

The oviduct also known as the Fallopian tube is a long narrow tube with funnel shaped opening which receives eggs (Ova) released by the ovary. So, the oviduct link the ovary with the uterus, and it is the site where sperm released from the male meet the egg to fertilize it into zygote.

Thus, oviduct is the answer

5 0
2 years ago
Read 2 more answers
NEED THIS QUICKLY PLZ!<br><br> What is the function of a leaf’s cuticle?
Black_prince [1.1K]
A plant cuticle is a protecting film covering the epiderms of leaves, young shoots and other other aerial plant organs with out periderm. It consists of lipid and hydrocarbon polymers impregnated with was and is synthesized exclusively by the epidermal cells.
8 0
2 years ago
Read 2 more answers
Ent var
jok3333 [9.3K]

Answer: Oxygen

Explanation:I hope it helps . i have breifly explained it .

Oxygen gas is one of the products of photosynthesis.

Which reactant is the source for oxygen gas and how is it released?

A .

Water, released when sunlight splits it into oxygen and hydrogen ions

B .

Glucose, released when glucose is broken down into carbon dioxide gas, oxygen gas and water

C .

Carbon dioxide, released when sunlight splits it into carbon and oxygen gas

D .

Electrons, released when they strike the chloroplasts

Green plants capture energy and convert it into chemical energy by the process known as photosynthesis. During photosynthesis, carbon dioxide and water are transformed into simple carbohydrates and oxygen is liberated into the atmosphere.

light

6CO2 + 12H2O ----------------> C6H12O6 + 6O2

chlorophyll

Water is also used as a source of hydrogen required for reduction of carbon dioxide to form carbohydrate.

Water is oxidised in presence of light and chlorophyll. Hydrogen is removed from water and oxygen is released as follows:

light

4‎H20 ---------------> 2‎H20 + 4H+ + 4e− + O2

chlorophyll

or,  

2‎H2O ----------------> 4H+ + 4e− + O2

Hence the source for oxygen gas is water and it is released when water splits in the presence of sunlight into oxygen and hydrogen ions.

So, the correct answer is 'Water, released when sunlight splits it into oxygen and hydrogen ions'.

4 0
3 years ago
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