Answer:
The correct answer is "pulmonary fibrosis".
Explanation:
Pulmonary fibrosis is a medical condition characterized by the presence of damage or scars in the lungs' tissue. Pulmonary fibrosis is caused by exposure to particles inhaled primarily in the workplace. The main consequence of pulmonary fibrosis is to lost the ability to breath, caused by the inability of the damaged tissued.
Gas exchange between the air in the lungs and the blood takes place in the alveoli.
ALVEOLI:
- Gaseous exchange is a phenomenon whereby gases (carbon dioxide and oxygen) are taken in and out of the body.
- Carbon dioxide is a product of respiration, hence, giving out. Oxygen is a reactant, hence, taken in. Carbon dioxide and oxygen are absorbed and removed from the blood in the general respiratory process.
- The alveoli are richly supplied with blood capillaries and are sites of gaseous exchange in some living organisms.
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The <u>sympathetic</u> division of the autonomic nervous system increases alertness. This division's primary process is to stimulate the body's fight-or-flight responses.
On the other hand, the <u>parasympathetic</u> division has a calming effect on the body. It is responsible for rest-and-digest activities.
D. sexual selection
D. Mutations
<span>These are all component of evolution in the promotion of biodiversity. How an organism evolves due to mutation, selection and adaptation. </span>
<span>Biodiversity depends on a species' ability to reproduce itself. If a species cannot reproduce then it will die out. This depends on the climatic conditions of the region. If there is a natural disaster for example, it will affect a species' ability to reproduce. This reduces the number of diverse species on earth. Biodiversity is the recognised variety of different types of life found on the earth. It also measures the variety of number and variety of plants, animals and other organisms found in different ecosystems.<span> </span></span>
The heart rate slowed and eventually stopped.
