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Marianna [84]
4 years ago
8

Which exposure acts as a risk factor for and accounts for the majority of cases of chronic obstructive pulmonary disease (copd)?

Biology
1 answer:
Shkiper50 [21]4 years ago
3 0
The answer is tobacco smoke. Exposure to tobacco smoke accounts for an estimated 80 to 90 percent of chronic obstructive pulmonary disease cases. The occupational exposure, passive smoking, and ambient air pollution are also risk factors but do not account for the majority of cases. In addition, the classification of stage IV of chronic obstructive pulmonary disease is defined as very severe because stage IV is very severe, Stage 0 is at risk, Stage I is mild, Stage II is moderate and Stage III is severe. 
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Real Question:
telo118 [61]

Answer:

When you are hungry your brain signals your digestive system to prepare for food. This leads to stomach growling. Your brain does this because it knows that you are hungry, and consequently the brain signals the digestive muscles  to contract. There is also, usually, some gas in the intestines and stomach. The noises come out when the mixture of the gas and fluid, digestive juices, squirt through a opening that separates the stomach and small intestine.

Sometimes the noises happen because of an excessive amount of gas in the small intestine.

5 0
3 years ago
Describe accurately the the basement membrane which underlies epithelial tissues
Nady [450]

Answer:

The basement membrane or basal lamina on which the epithelium form, made by extracellular matrix.

Explanation:

The basement membrane is the layer underlies all epithelia that is made up extracellular matrix secreted by the epithelium cells that provide structural support to the structure of epithelia.

It forms the barrier between epithelial tissues therefore once a epithelial cancer penetrate this basement membrane it will spread to all underlying tissues.

Thus, the correct answer is - The basement membrane or basal lamina on which the epithelium form, made by extracellular matrix.

The basement membrane is form of extracellular matrix that underlies all epithelia. It provides structural support to epithelia and forms a mechanical connection between epithelia and underlying connective tissue.

The basement membrane, or basal lamina, is a sheet of proteins and other substances to which epithelial cells adhere and that forms a barrier between tissues.

Epithelial cancers may have the ability to penetrate through the basement membrane and spread to underlying tissues.

8 0
3 years ago
Choose one type of water pollution. How did the pollution happen? What negative effects does it have on the environment? What is
vivado [14]

Oil spill or a discharge from pipe from a factory or sewage system. Since this is a single point of origin water pollution, this type of water pollution furnish itself to relatively easy remediation.

What is point source water pollution?

Point-source water pollution is the one type of water pollution which is easy to recognize because it generates from a single source or event and affects a specific area.

The negative effects of single point origin is deteriorating water quality which damage the environment, health conditions.

Destruction of biodiversity is another negative effect of water pollution depletes aquatic ecosystems and prompt unbridled proliferation of phytoplankton in lakes called as eutrophication.

The solution to reduce water pollution is reduce carbon dioxide emissions to prevent global warming and acidification of the oceans. Another is to reduce the use of chemical pesticides and nutrients on crops.

For more detail regarding Water pollution, visit:

https://brainly.in/question/5833349

#SPJ1

3 0
2 years ago
CANT GET WRONG , ITS LIKE A WORK BANK BUT DONT KNOW WHAT ITS CALLED.
sammy [17]
1.half of our chromosomes from our mother and half from our father
2.genes
3.brown hair
4.100%
5.probability

6 0
4 years ago
Which statement best express the central idea of the text
seraphim [82]

Answer:

cant see the answer choices

Explanation:

8 0
3 years ago
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