Answer:
nucleus
Explanation:
Eukaryotic cells have a true nucleus, which means the cell's DNA is surrounded by a membrane. Therefore, the nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes, the cellular organelles responsible for protein synthesis.
Answer:
The tiny muscles that make up the iris, known as the circular and radial muscles, relax and contract to maintain a fairly constant level of light entering the eye. In bright light, the circular muscles contract whilst the radial muscles relax. This causes the pupil to constrict and less light enters the eye.
Explanation:
The answer would be burr holes. These are small holes that a
neurosurgeon creates in the cranium. Burr holes are used to aid dismiss heaviness
on the brain when fluid, for example blood, sizes up and begins to compress the
brain tissue. An epidural hematoma is measured as an extreme emergency. Marked respiratory
arrest or neurologic discrepancy can happen within minutes. Cure consists of
making an opening over the skull to cut ICP emergently, eliminate the clot, and
regulate the bleeding.
