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zheka24 [161]
2 years ago
5

Define cholesterol in your own words

Biology
1 answer:
iren [92.7K]2 years ago
8 0
Cholesterol is any of a class of certain organic molecules. A cholesterol is a sterol, a type of lipid. Cholesterol is biosynthesized by all animal cells and is an essential structural component of animal cell membranes. When chemically isolated, it is a yellowish crystalline solid.
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Select the correct answer. Which statement about natural selection is true? A. Natural selection and evolution are two terms for
Masja [62]

Answer:

C. Natural selection is the process by which organisms with more beneficial traits are more likely to survive and reproduce.

Explanation:

Natural selection is an evolutional process by which species of living organisms with stronger or more beneficial traits have higher chances of survival and reproduction. In other words, it is the process by which organisms adapt and survive.

Organisms in a population are all different in their own ways. And those with characteristics or traits better suited for the environment are more likely to survive than those without. The selection prefers more beneficial traits and not wholly on the superiority of the organism. So, the survival and reproduction chance of an organism depends on the presence of traits beneficial to the environment, which is how nature selects. And in this process, those selected will dominate the population while those rejected will be reduced or even die.

Thus, the correct answer is option C.

6 0
3 years ago
The fossil record is testament to extinct fauna no longer present on Earth. Certain areas of the planet have always had high spe
prohojiy [21]

Answer: Option (1)

Explanation:

The extinction event played an important role in the creation of new diverse life forms on earth. After an extinction event, both globally and locally, more than 75% of animal species gets vanish and the only those highly resistant life supporting organisms survive and with due course of time, they undergoes evolution, thereby bringing changes to the existing life forms. This is how they initiates and helps in the increasing species diversity.

Thus, the correct answer is option (1).

7 0
3 years ago
Alpha radiation releases two ____ from the parent nucleus
lilavasa [31]
<span>The answer is Helium-4. These are two protons and two neutrons bound together. Alpha radiation is the least powerful of the 3 types of radiation: the others being gamma and beta. Nonetheless, it is the most densely ionizing. Alpha and beta radiation release actual matter while gamma emits electromagnetic <span>radiation</span></span>




7 0
3 years ago
To understand the chemical basis of inheritance, we must understand the molecular structure of DNA.
earnstyle [38]

Answer:

C) reductionism

Explanation:

The approach of reductionism is applied to decipher the basic concepts that rule some complex life processes. In this approach, the complex life processes can be interpreted by explaining the physical and chemical structure of involved components and their interactions. DNA molecules store genetic information. Inheritance means the transfer of genetic traits from one generation to the next. Therefore, the chemical structure of DNA is the application of reductionism to understand the chemical basis of inheritance.

4 0
4 years ago
What animal uses 3.500.000 kcal of energy? ​
andrew-mc [135]
You can download the file
8 0
4 years ago
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