Certain chest deformities prevent normal expansion of the chest. Explain why this makes ventilation difficult in terms of pressure and volume.

Answers

Answer 1

Answer: The lungs work by expanding and going back to their original size when you inhale and exhale. The rib cage also expands so the lungs can have more air inside and expand. Due to deformities, the rib cage might not expand and/or the diaphragm might not lower itself, which might lead to pressuring the lungs not to expand and having a lower volume of air inside. This leads to breathing difficulties.

Related Questions

Which period of prenatal development is characterized by increased cellular differentiation? Select one:a. Embryonic periodb. Fetal periodc. Preimplantation periodd. Unattached conceptus?
Segments of dna that contain the code for specific proteins are called _____.
What is the process of moving a genetic element within or between DNA molecules?
Which type of mutation occurs when the wrong base is used? A.There is no mutation. B. substitution C. insertion D. deletion
"Over the years, the forest cover in a particular ecosystem was reduced from about 50% to 20%. What would be the MOST LIKELY effect of this?A) The loss of moisture from the soil would be reduced. Eliminate B) Herbivores would be forced to change into carnivores. C) The flow of energy in the ecosystem would be affected. D) The exchange of carbon dioxide in the ecosystem would increase"

Which of the following ideas is supported by Darwin's observations of local variation among tortoises in the Galapagos islands?A: artificial selection
B: adaption
C: acquired characteristics
D: tendency towards perfection

Answers

B adaption because galapagos islands the is like no food

In the nitrogen cycle, once a consumer gains nitrogen nutrients from animals or plants, it recycles these nutrients back to the earth by _____.

Answers

The correct answer to the question is releasing waste and decomposition. In the nitrogen cycle, once a consumer gains nitrogen nutrients from animals or plants, it recycles these nutrients back to the earth by releasing waste and decomposition.

Match each point of view with the benefit it has in telling a story.first person
The reader can learn about several
characters' thoughts.
It gives a personal feeling as the
narrator shares his or her thoughts.
third person
second person
The reader feels like he or she is being
addressed by the writer

Answers

Answer:

Third Person-The reader can learn about several characters thoughts.

First Person-It gives a personal feeling as the narrator shares his or her thoughts.

Second Person: The reader feels like he or she is being addressed by the writer.

Explanation:

Which would have the GREATEST effect on the rate of photosynthesis in a plant? A) oxygen level B) light intensity C) sugar concentration D) starch concentration

Answers

The correct answer is option B, Light intensity

Reason -

Light intensity plays a major role in the regulation of photosynthesis. In the absence of light a plant is unable to photosynthesize. As the plant receives light through the chlorophyll , essential chemical reactions takes place thereby releasing free electrons which keep on driving the further processes or reactions in a plant to produce food and oxygen and energy..

The higher the light intensity, the higher is the rate of photo synthesis

Oxygen levels make no impact, they need CO2.
Sugar concentration makes no impact as that is a product.
Starch makes no impact.
Only light from the choices above is the factor in photosynthesis that could have the greatest effect as it is not a product yet a reactant

The pattern of disproportionate dumping of toxic waste and other forms of pollution in neighborhoods where the poor and people of color live is called

Answers

The pattern of disproportionate dumping of toxic waste and other forms of pollution in neighborhoods where the poor and people of color live is called Environmental Racism.
This involves the placement of low-income or minority communities in the proximity of environmentally hazardous or degraded environments, such as toxic waste, pollution and urban decay. The socially marginalized racial minority communities are subjected to disproportionate exposure of pollutants and/or the denial of access to sources of ecological benefits such as clean water, air, and natural resources.

In 1859, Charles Darwin described a model of how living things change over time. He described this model and the evidence that supported it in a book called On The Origin of Species. Which of the following is the scientific term is used to describe a testable model that seeks to explain natural phenomena? a) data b) hypothesis c) observation d) theory

Answers

The correct answer is D. A scientific theory is a well substantiated explanation of some aspect of the natural world. A scientific theory is usually an acceptable and organised system of knowledge that applies to a particular circumstance. Scientific theories usually present proven explanations about the phenomenon observed.

Answer:

The answer would be D

Explanation:

Other Questions

If the DNA sequence TTCACG is transcribed to AAGGC, what type of mutation has occurred?a. Insertion b. Substitution c. Translocation d. Deletion

A specific type of physical change is a _________ change.chemical bond covalent phase

How do both a bird and a reptile reproduce?a. They both lay eggs in the water. b. They both lay amniotic eggs. c. They both have live babies.

Name 2 places were Archaebacteria can live