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QveST [7]
3 years ago
5

While playing baseball with his friends, Reyes was almost hit in the face with a fast ball. Neurotransmitters in his _____ were

released, triggering the firing of neurons throughout his brain and the release of chemicals throughout his body. His heart beat quickened, his pupils dilated, and his respiration increased.
Biology
2 answers:
yuradex [85]3 years ago
4 0
Hypothalamus

I hope this helps
olasank [31]3 years ago
4 0

hypothalamus

I hope this helps

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Scientist are studying an 500g. Sample of a radioactive element. Which has an annual decay rate of 11%. How many grams of the sa
gtnhenbr [62]

Nothing

Explanation:

Mass of the sample = 500g

Decay rate per anum = 11%

Unknown:

Mass of sample remaining after 10yrs = ?

Solution:

  This is a simple percentages problem;

The radioactive sample loses \frac{11}{100 } x 500g of sample per year;

  this is a loss of 55g per year;

In 10years time, the sample would have lost 10 x 55g = 550g of element.

Since our sample is not up to 550g, then no amount of sample will remain after 10yrs.

learn more:

Radioactive decay brainly.com/question/10094982

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6 0
3 years ago
GENETICS VOCABULARY QUIZ
wariber [46]
1. The story is talking about the dogs fur color.
2. The alleles are BB, bb, and Bb
3. The BB or black fur is dominant
8 0
3 years ago
Which statement is true regarding monocytes
vodka [1.7K]

Answer: <u>Option C, they digest pathogens</u>

Explanation: Monocytes are involved in the process of digesting pathogens and infected cells, termed as phagocytosis.

Monocytes don't produce antibodies, only B cells can produce antibodies. So, option A and D are incorrect. Also they appear colorless when observed under the microscope. They don't appear granular, so option B is also incorrect.

7 0
3 years ago
Read 2 more answers
How do meteorologists use isotherms and isobars?
nignag [31]

Answer:

A. To identity high- and low-pressure systems

Explanation:

Isobars are similar to the level lines on a topographic map, showing areas of similar pressure, they are also drawn in circles to represent the areas of similar air pressure over a geographical map.

Isotherms are usually displayed in color showing areas over a map that have the same temperature or are covered by a similar temperature system (heat or cold front for example).

Both are used in electronic media mostly (although in print in newspapers too), over a geographic map to position the systems.

5 0
3 years ago
Differentiate the osmosis in hypertonic and hypotonic solutions.
Nataly_w [17]

Answer:

A cell is in a hypertonic solution, the solution has a lower water concentration than the cell cytosol, and water moves out of the cell until both solutions are isotonic. Cells placed in a hypotonic solution will take in water across their membranes until both the external solution and the cytosol are isotonic.

7 0
3 years ago
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