<span>Ptosis refers to drooping of an upper eyelid of one or both eyes. The droop may be hardly visible, or the lid can move down over the entire pupil. Ptosis can affect both children and adults, however more often than not happens for the reason that of aging. In some cases, droopy eyelid is caused by additional grim circumstances, such as a stroke, brain tumor, or cancer of the nerves or muscles. Neurological disorders that affect the nerves or muscles of the eyes , such as myasthenia gravis can also lead to ptosis.</span>
Answer:
The cells adapted by modifying their shapes.
Explanation:
The larger the cell, the smaller the surface / volume ratio. This can be a problem because it causes the cell to have difficulty in absorbing nutrients, in addition to having difficulties in releasing substances that are not relevant inside. To circumvent these difficulties and have a good functioning, many large cells adapt by modifying their shapes to increase their surface. In this way many large cells are presented with a thin and elongated shape, others create several appendages on their surface.
Answer:
Bacteria are microorganisms and they are useful to us. Bacteria are economically important as these microorganisms are used by humans for many purposes. The beneficial uses of bacteria include the production of traditional foods such as yogurt, cheese, and vinegar. Microbes are also important in agriculture for the compost and fertilizer production. Bacteria are used in genetic engineering and genetic changes.
