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lbvjy [14]
4 years ago
5

How was the present-day theory of evolution developed?

Biology
1 answer:
ozzi4 years ago
4 0

Answer:

The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits.

Explanation:

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What are 3 examples of signals that cells may receive? What is the most common type of signal?
ASHA 777 [7]

3 examples would be touch, light and chemical.

and the most common signal would be chemical.

Hope this helps! (:

5 0
3 years ago
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Given two strings next to each other on a musical instrument, which string would produce a sound of a lower pitch? The string wi
Vesnalui [34]

Answer:

The string with the thicker diameter

Explanation:

In a musical instrument like the acoustic guitar, strings are pivotal to their function as they are responsible for the varying sounds/notes that the instrument gives. Factors that contribute to the varying pitch i.e low or high, of the strings are its thickness, length and tension.

- In terms of thickness, a STRING OF THICKER DIAMETER HAS A LOWER PITCH while a string of thinner diameter has a higher pitch.

- In terms of tension, a higher tension on the string gives a higher pitch, while a lower tension gives a lower pitch.

- In terms of string length, a short string length emits a higher pitch while a long string length emits a lower pitch.

3 0
3 years ago
Flammable materials, like alcohol, should never be used or dispensed near
Helen [10]

Hello!

Flammable materials, like alcohol, should never be used or dispensed near any flame.

I hope it helps!

5 0
4 years ago
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A student is taking an animal science and an astronomy class. In animal sciences, she learns that pumas are called mountain lion
Gnesinka [82]

Answer:

Pluto

Explanation:

Pluto because some people consider it a planet, but some consider it a dwarf planet because it has not cleared the neighborhood around its orbit.

8 0
3 years ago
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Disease that is characterized as having lack of energy and protein is called?
Anettt [7]

Answer:

Sounds closest to:  Kwashiorkor

Explanation:

Kwashiorkor is a disease brought on by severe protein malnourishment. In Kwashiorkor, extended breastfeeding and late, insufficient weaning lead to low calorie intakes but significantly superior biological value. As a result, a kid with kwashiorkor will likely experience compromised organ function and development. Sudden outbreaks of diseases like the measles, gastroenteritis, or pneumonia exacerbate the issue by increasing needs while maintaining low intakes. The kid may exhibit oedema of the face and lower limbs, failure to grow, anorexia, diarrhea, lethargy, dermatosis, flaky-looking skin, scant, soft, and thin hair, angular stomatitis, cheilosis, and anemia as a result of this scenario.

This is a bit similar to Marasmus.

But there is a difference.

But ⇒ <em>how does kwashiorkor and marasmus differ?</em>

<em />

Kwashiorkor is predominantly a protein shortage, despite adequate calorie intake. When a youngster is weaned off of protein-rich breast milk, it frequently happens. The patient will show signs of oedema, an enlarged abdomen, and other conditions.

Marasmus is a total energy shortage that causes a body weight that is at least 60% below normal. The victim will only be malnourished.

8 0
2 years ago
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