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ZanzabumX [31]
3 years ago
7

How secretion and excretion both are different? Explain in simple language.

Biology
1 answer:
gtnhenbr [62]3 years ago
5 0

Answer:

Excretion is the removal of material from one living thing, for example. Humans excrete tears, sweat, carbon dioxide etc.

Secretion is the movement of material from one point to another, for example.  Humans secrete enzymes, hormones, saliva etc.

Basically in summary excretion is the removal of physical material and secretion is the movement of biological materials from one point to another.


I hope this was clear enough lol

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A gene with the sequence ATTCATTCA underwent duplication after a few generations. Which sequence represents this gene after the
Ratling [72]

Answer:

The sequence would be <u>ATTCATTCA</u>.

Explanation:

Usually, when a sequence is duplicated, one of them becomes a non-coding. It's just like a computer. There can only be one specific file, or else a duplicated one will just replace the existing one, if you allow the file to do so. Same with DNA. This is why most of our DNA have no function and why we lost genetic abilities such as being able to produce our own Vitamin C.

So instead of the new gene being ATTCATTCAATTCATTCA, it's simply ATTCATTCA. You simply cannot have duplicates, just like computer files. I wish I could share an amazing video by PBS Eons giving a great explanation about genes and stuff, but sadly Brainly doesn't like such stuff, so just <em>search up in ㄚㄖㄩㄒㄩ乃乇 (ebuTouY) "genes we lost along the way" and it should be the first video that pops out.</em> Trust me, it's a great video, it's much better than my explanation.

4 0
3 years ago
If thymidine dimers created by UV irradiation persist until DNA replication, DNA polymerase is likely to make a mistake reading
marishachu [46]

Answer:

Thymidine dimers is likely to be repair as soon as it is originated but if left unrepaired then it causes  frame shift mutations.

Explanation:

In case of Bacterium if UV irradiation induces covalent linkage of two thymidine present adjacently to each other or on a single strand to make thymidine dimers.

These either excised via DNA repair enzyme like Endonuclease V and the proof reading activity of DNA polymerase I enzyme help in incorporation of nucleotide by taking the unmutated original strand as a template.

These dimers if not excised before second round of replication than the sequence of newly synthesized strand will be altered. As DNA polymerase III enzyme read thymidine dimers as single thymidine nucleotide and incorporate only 1 adenine in the newly synthesizing complementary strand which results in frame shift mutations

It is the mutation in which reading frame of codons is shifted or altered due to deletion or addition of a single nucleotide.

7 0
3 years ago
What is the main difference between food chains and food webs?(1 point)
aliya0001 [1]

Answer:

A

Explanation:

4 0
3 years ago
How is inertia taking place if a penny is at rest?
Citrus2011 [14]

A penny is at rest is experiencing  inertia because it is not moving.

<h3>What is inertia?</h3>

According to Newton's first law of motion, every object at rest or uniform motion in a straight line will continue in that state unless it is acted upon by an external force. This law is also called law of inertia.

Inertia depends on mass because the more massive an object is, the more reluctant it will be to move.

Thus, a penny is at rest is experiencing  inertia because it is not moving.

Learn more about inertia here: brainly.com/question/1140505

#SPJ1

4 0
2 years ago
African elephants flap their large ears to cool off. Which biology theme does this phenomenon represent?
Dennis_Churaev [7]
<span>When an elephant flaps its ears to cool off, it is using a behavioral response to adapt to their environment/temperature. It's also known as stimuli responding to the the environment.</span>
7 0
4 years ago
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