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blsea [12.9K]
3 years ago
6

A blank is any random change in DNA.

Biology
1 answer:
Allushta [10]3 years ago
3 0
A mutation is a change in DNA, the hereditary material of life. An organism's DNA affects how it looks, how it behaves, and its physiology.
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( There are 3 questions )
PSYCHO15rus [73]
Well question one is D
5 0
4 years ago
PLEASE HELP
Stolb23 [73]

The bacteria which had mutation became resistant to the antibiotic and survived and keeps on increasing, promoting natural selection.

Explanation:

The bacteria rapidly divide, the chances of mutation in the gene increases manifold.

The strains of bacteria causing tuberculosis and staph infection got mutated at DNA level such that they became resistant to antibiotics when tested those susceptible did not survive. These mutations were not harmful to bacteria and the resultant bacteria survived.

These bacteria which survived and proliferated as the environment was in their favour.

Thus, Darwin's Theory of Natural Selection is acceptable here as it says if a mutation is occurring towards the increase in population, they will be selected ones.

7 0
3 years ago
The spinal cord is made up of
Goshia [24]

Answer:

The spinal cord is made up of bundles of nerve fibers. It runs down from the brain through a canal in the center of the bones of the spine. These bones protect the spinal cord. Like the brain, the spinal cord is covered by the meninges and cushioned by cerebrovascular fluid.

lol im only 14!

3 0
3 years ago
What body system involves the skin, sweat glands, and oil glands?
irakobra [83]

Answer:

its the skin system pleas ei just need the points

Explanation:

7 0
3 years ago
Snake venom contains a mixture of enzymes, which include phospholipase that break down cell membranes, proteinases that destroy
Alik [6]

Answer:

The correct answer is - Venom enzyme inhibitors.

Explanation:

The snake venoms are the complex mixtures of phospholipase A2s, disintegrins, serine proteases, C-lectins, and metalloproteases, and others. The snake venom phospholipase A2s (svPLA2s) enzymes found in most of the families of venomous snakes that cause anticoagulant effects, cardiotoxicity, neurotoxicity, and cytotoxicity, and other effects.

In antivenom, there are Venom enzyme inhibitors other than antibodies that help in neutralizing these enzymes by weakening or inhibiting these toxic actions.

3 0
3 years ago
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