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Wittaler [7]
4 years ago
6

HELP PLEASE!!!

Biology
1 answer:
Arte-miy333 [17]4 years ago
6 0

Answer: B.) Add a small amount of cold water to both a large and small container of warm water.

Explanation:

Adding the same amount of cold water to different sizes of warm water will model the effects of how it changes the temperatures on a smaller scale and, theoretically, of a bigger scale.

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Neuroplasticity or brainplasticity

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What is the main difference between exocrine and endocrine glands?
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6 0
3 years ago
If a bacteria is positive for the enzyme urease and is inoculated in a urea reduction broth tube at 37∘C for 24 hrs, what color
Vedmedyk [2.9K]

Answer:

The color would be Pink

Explanation:

According to the question, the bacteria is positive for the enzyme urease and it's inoculated for 24 hours.

Urease broth is a differential medium that tests the ability of an organism to produce urease, that hydrolyzes urea to ammonia and carbon dioxide. The broth contains two pH buffers, urea, a very small amount of nutrients for the bacteria, and the pH indicator phenol red. Phenol red turns yellow in an acidic environment and fuchsia in an alkaline environment.

If the urea in the broth is degraded and ammonia is produced, an alkaline environment is created, and the media turns pink within 24 hours.

Many enterics can hydrolyze urea; but only a few can degrade urea rapidly. These are called “rapid urease-positive” organisms.

Urea broth is formulated to test for rapid urease-positive organisms. The restrictive amount of nutrients coupled with the use of pH buffers prevent all but rapid urease-positive organisms from producing enough ammonia to turn the phenol red pink.

4 0
3 years ago
The outer walls of the stomach are most likely made of _____ tissue because the stomach needs to churn and mix stomach contents
TEA [102]

Answer:

The stomach and intestines have a thin simple columnar epithelial layer for secretion and absorption. The submucosa is a thick layer of loose connective tissue that surrounds the mucosa. This layer also contains blood vessels, lymphatic vessels, and nerves.

Explanation:

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3 years ago
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