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allsm [11]
2 years ago
13

Joanna is culturing bacteria for her class's investigation. She makes sure to incubate the cultures at no higher than 25°C. The

main reason for this is to avoid... what?
Biology
1 answer:
Neko [114]2 years ago
3 0

Answer:

to avoid the decrease in oxygen and the increase in heat so it doesn't kill the bacteria

PLEASE MARK ME AS BRAINLIST...

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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
What is the best way to fight foodborne illness? check food for microbial contamination using a magnifying glass. buy only steri
Basile [38]
I think the answer is to throw away all uneaten and excess food...etc
5 0
3 years ago
Can you tell the difference between electromagnetic and mechanical waves?
mart [117]

Answer:

Electromagnetic waves can travel through a vacuum, that is an empty space, whereas mechanical waves cannot. They need a medium to travel such as water or air. Ripples in a pond are an example of mechanical waves whereas electromagnetic waves include light and radio signals, which can travel through the vacuum of space.

Explanation:

8 0
2 years ago
PLS HELP I WILL GIVE YOU BRAINLIEST AND PLS EXPLAIN YOUR ANSWER!!!
Kipish [7]

Answer:

Most likely centripetal force. Newton's first law states that an object in motion will continue to remain in motion unless acted upon by an outside force. In this case, that outside force is the centripetal force.

Explanation:

Hope this helps :)

8 0
2 years ago
Which phrase best describes what a soil horizon is?
katen-ka-za [31]

Answer:

B. Each layer of a soil profile

Explanation:

I took the test and got it right

7 0
3 years ago
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