Answer:
3. Polysaccharide carbohydrate
EXPLANATION:
The POLYSACCHARIDE capsule of Streptococcus Pneumoniae is the major virulence factor in it's invasion and subsequent infection.
The capsule helps to avoid phagocytosis which is a defence mechanism by the body.
The polysaccharide capsule also gives the bacterial organism several serotypes.
The pneumococcal vaccine is derived from the organism's capsule.
Answer:
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Explanation:
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1. An area of growth.
2. A disturbance, such as a fire, starts.
3. The fire destroys the vegetation.
4. The fire leaves behind empty, but not destroyed soil.
5. Grasses and other herbaceous plants grow back first.
6. Small bushes and trees begin to colonize the public area.
7. Fast-growing evergreen trees and bamboo trees develop to their fullest, while shade-tolerant trees develop in the understory.
8. The short-lived and shade-intolerant evergreen trees die as the larger deciduous trees overtop them. The ecosystem is now back to a similar state to where it began.
