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VARVARA [1.3K]
3 years ago
9

Explain how the heart work?

Biology
1 answer:
Triss [41]3 years ago
3 0
You heart is a specialised muscle the pumps you blood around you body and your blood carries oxygen and nonrishment to all parts of your body and carries waste products to serevrial organs, notably your lungs and kidneys to eliminate. your heart is divded into two pumps witch works together  
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Can somebody answer the unsolved ones ?
kherson [118]
There are 15 students in math class.at the begning of class everyone races into class as everyone love maths.the professor takes note of the first 5 students who gets class and ranks them according to the order in which they entred as their top 5 favourite students. in how many different ways could the professor rank their top 5 students using formulla from combinations and permutations
4 0
3 years ago
The _____ nervous system contain(s) the sensory and motor neurons connecting the CNS to the rest of the body.
devlian [24]

Answer: The correct answer is peripheral

Explanation:

The Peripheral nervous system consists of the following:

- sensory neurons, which leads all parts of the body to the central nervous system

- motor neurons that runs the central nervous system to all parts of the body.

Thus, Peripheral nervous system is the answer

5 0
3 years ago
28. The figure below shows an animal tissue
saveliy_v [14]

Answer:

The tissues of multicellular, complex animals are four primary types: epithelial, connective, muscle, and nervous. Recall that tissues are groups of similar cells group of similar cells carrying out related functions.

Explanation:

.

5 0
2 years ago
The lungs remain inflated because ___________.a. intrapleural pressure is exactly equal to atmospheric pressure b. intrapleural
kkurt [141]

Answer:

Option C,  Intrapleural pressure is less than intrapulmonary pressure

Explanation:

During inspiration, the air enters the lungs due to lower pressure in the intrapulmonary or intra-alveolar  than the atmospheric pressure. During quite respiration, the intrapulmonary pressure reduces to a pressure that is 3 mm Hg lower than that of atmospheric pressure. During quiet expiration, the intrapulmonary pressure rises up to a pressure that is 3 mm Hg higher than that of atmospheric pressure. This leads to lack of air in the intrapleural space thereby producing intrapleural pressure which is lesser than that of intrapulmonary pressure.  

This difference in pressure (i.e higher pressure with in the lungs than the atmosphere)  causes lungs to remain attached to the chest wall and hence looks inflated.  

Hence, option C is correct

8 0
3 years ago
How is momentum conserved in a system in which two satellites connect
myrzilka [38]

The one satellite has all the momentum before they connect, and then afterwards they share it.


4 0
3 years ago
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