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Annette [7]
2 years ago
14

What is the normal force on a single book on a shelf?

Biology
1 answer:
dezoksy [38]2 years ago
7 0

Answer:

Fn = Shelf

Explanation:

The shelf is pushing the book upwards.

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In a relatively small iguana population the allelic frequency is tracked for three generations. Webbing is a recessive allele; n
kakasveta [241]

Answer:

This is an example of founder effect.

Explanation:

Founder effect may be illustrated as the loss of genetic variation in a novel small population originated from the original population. The concept was initially presented by Ernst Mayr. It can be seen that genetic diversity has got reduced in the population of iguana due to the result of the flood that has washed all the iguana without webbed feet into the sea.  

The new population has got inclined from the small iguana population. Thus, the iguana population is regarded as an illustration of the founder effect.  

5 0
2 years ago
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What happens to an enzyme's structure as it exceeds the typical human body temperatur?
valentinak56 [21]

Answer;

The enzyme structure begins to break down intermolecular bonds are broken

enzyme molecules gain kinetic energy.


Explanation;

Enzymes are proteins that play an important function in the body of catalyzing reactions in the body.

Enzymes work best at optimum temperature; low temperature lower than optimum temperatures deactivates them and higher temperature denatures them.

The shape of an enzyme depends on its temperature; when they get too warm they get loose, and at very low temperatures they get too tight. At optimum temperature or at the right temperature then they are just at the right shape and the chemical reactions they catalyze will be at optimal rate.

3 0
2 years ago
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If you were working for a pharmaceutical company as part of a drug discovery team, which of these enzyme inhibitors would you su
mart [117]

Answer:

Option A, a drug to treat high blood pressure that reversibly inhibits an enzyme catalyzing production of a chemical that causes blood vessels to contract

Explanation:

The complete question is

If you were working for a pharmaceutical company as part of a drug discovery team, which of these enzyme inhibitors would you suggest as a productive avenue for drug development?

a) a drug to treat high blood pressure that reversibly inhibits an enzyme catalyzing production of a chemical that causes blood vessels to contract

b) a drug to treat diabetes that irreversibly inhibits an enzyme in the metabolic pathway to synthesize glucose

c) a compound that acts as a competitive inhibitor for a digestive enzyme produced only in the presence of certain foods

d) a compound that inhibits enzymes by significantly changing the ph throughout the body

Solution

Productive avenue of a drug simply means producing an drug that not only treats the main disease or disorder but also functions to inhibit the causative agent activity. In case of option A, both the objectives of producing drug are met and hence it is the right choice.

High blood pressure usually affects the blood vessels by narrowing them and in severe cases may rupture them. If a drug as stated in option A is produced, it will not only rectify the effects of high blood pressure but will also prevent the blood vessels from narrowing by inhibiting the activity of enzymes responsible for producing chemical that leads to blood vessel contraction.

Hence, option A is correct

6 0
3 years ago
How many levels of classification do scientists use today?
11111nata11111 [884]
Kingdom, phylum, class, order, family, genus, species
8 0
3 years ago
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Plant and animal cells are eukaryotic cells because they have which organelle?
mylen [45]

Answer:

Eukaryotic cells, like plant and animal cells, have membrane-bound organelles like the <u>nucleus and mitochondria.</u>

Explanation:

3 0
2 years ago
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