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rusak2 [61]
3 years ago
11

Studying the differences between fossils and modern organisms, like the camel, helps scientists better understand the

Biology
1 answer:
Marat540 [252]3 years ago
5 0
It shows evolution and growth from the past and present
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How does using killed or weakened bacteria in an immunization help the body prevent infections?
Ray Of Light [21]
The answer is A.) Antibodies are formed that fight those types of bacteria.

To explain, your immune system protects you from invasive bacteria by attacking and destroying them. The problem is that your system needs to recognize invading organisms like bacteria. Remember that bacteria cells have many of the same types of structures as your own cells, and you do not want your immune system to attack your own body. Special cells called T-cells and B-cells participate in this process. To make a long story short, antibodies are special molecules that your immune system "labels" invading bacteria with, so that it knows what to attack. These antibodies only fit on molecular structures of the targeted bacteria.

When a dead or weakened bacteria, or even pieces of a bad bacteria are introduced to the body, the B-cells and T-cells create antibodies that label that specific type of bacteria, or even its parts. They also remember how to make them in the future, so that later, when and if infected with a live version of that bacteria, the immune system already makes the antibodies to fight that infection. The process can work for viruses too.
4 0
3 years ago
The Gram-positive bacteria have a ______ cell wall than the Gram-negative bacteria.
MrRissso [65]
Primarily, it detects peptidoglycan, which is present in a thick layer in Gram-positive bacteria. ... In Gram-positive bacteria, the cell wall is thick (15-80 nanometers), and consists of several layers of peptidoglycan. They lack the outer membrane envelope found in Gram-negative bacteria.

Link:https://courses.lumenlearning.com/boundless-microbiology/chapter/cell-walls-of-prokaryotes/

Note: This information has been taken out of a website.
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3 years ago
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Botox injections have been approved by the food and drug administration (fda) as a procedure to treat spasms of the flexor muscl
Nostrana [21]

Botox injections comprise Botulinum toxin and is used in the treatment of some kind of eye ailments, like strabismus (crossed eyes) and blepharospasm (involuntary blinking), to treat movement disorders (like torticollis, cervical dystonia) or muscle spasms/stiffness. It can also be used to minimize the cosmetic appearances of wrinkles.

However, due to certain side effects, the drug was ban by FDA, but it has been approved by the FDA for treating spasms of the flexor muscles. Although, there is a scenario that the claim for the application of the drug could be rejected in case of a lack of a medical necessity, that is if it does not fulfil the usual accepted professional medical standards of care.

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3 years ago
What are two differences between DNA and RNA
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4 0
3 years ago
PLEASE HELP WITH THE FOLLOWING
konstantin123 [22]

Answer:

The first option, the second option and the last option is what applies during the electron transport chain

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Protons are moved across a membrane

Oxygen is not a waste product since it is very useful, water is the waste product

Carbon Dioxide is released as it is another waste product

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2 years ago
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