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zmey [24]
3 years ago
12

Autonomic regulation of heart rate is via two reflex centers found in the pons. True or False

Biology
1 answer:
prisoha [69]3 years ago
4 0

Answer:

Autonomic regulation of heart is via two reflex centers that are found in medulla oblongata

Explanation:

Medulla oblongata contain long stem that makes the upper part of brain case and this is a cone shaped structure which is responsible for autonomic regulation like controlling heart rate,vomiting,respiration,breathing etc.

The heart rate is controlled by autonomic nervous system that are mainly sympathetic and parasympathetic nervous system that releases hormones like catecholamine (epinephrine and non epinephrine) which helps in controlling the heart rate.

Medulla oblongata mainly connects the brain with the spinal cord that are responsible for responsible for the autonomic functions which contain -

Controlling the ventilation via signalling system regulated by chemo receptors  which detects change in acidity of the blood.

Acts on cardiovascular centers.

Controlling the reflex centers like vomiting,coughing,sneezing,swallowing etc.

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Projection maps of earth are made in a variety of ways , such as the Robinson’s projection , Mercator projection, and conic proj
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Answer:

C. All projection maps are subject to varying types of distortion.

Explanation:

The only truly accurate representation of Earth is the globe, as earth is a sphere. When one tries to map out a 3-d sphere on a piece of paper, it is impossible without some kind of distortion occurring. This distortion happens with distance, size, and sometimes other factors. Different projections are used for different purposes because some are more accurate than others in terms of distance, size, relative position, etc.

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3 years ago
This chart shows the experimental design of four students who are all observing what kind of bird seed birds tend to eat
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Answer: student 4

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7 0
3 years ago
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When elements combine to form compounds what happens to the properties of the original elements?
exis [7]
The properties of the original elements are completely changed.

For example, in the compound called "iron(II) sulphide", it is composed of iron and sulphur, that are chemically combined together. The element iron is attracted to magnets. Meanwhile, iron(II) sulphide is not attracted to magnets. 

Another example is where sulphur has a yellow colour, but iron(II) sulphide has a brownish colour. As we can see, even the physical properties (colours) are completely different.

Therefore, the properties of the original elements are completely changed when they're combined into compounds.





3 0
3 years ago
During ________ the chromosomes, which were distinct and condensed, begin to spread out into a tangle of chromatin. a nuclear en
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Chromosomes are unlikely to de-condense and spread out into a tangle of chromatin during telophase I (i.e. Telophase of Meiosis I), since Meiosis is still ongoing, and the genetic material should be in its condensed form during Meiosis II as well. 

Hope this helps! :)
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3 years ago
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The overall population of species has increased what could I have occurred to allow this to happen
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