Answer:
Explanation:
i believe the chloroplast maintains the shape and the folded membranes within the cytoplasm should be the golgi is the following are the only answer choices. if it's not then the endoplasmic reticulum should be the answer. Chrloroplast can't be it because it's liquid and ribosomes are just circle things that attach to the er and golgi. the nucleus is not folded just double membrane
There are more than 7,000 harmful chemicals in tobacco smoke, at least 250 are known to be harmful. Some of these chemicals are:
Nicotine
Formaldehyde
Lead
Arsenic
Ammonia
Radioactive elements such as Polonium-210
Benzene
How some of those chemicals affect the body:
Nicotine is highly addictive and can cause an increase in blood pressure, heart rate, flow of blood to the heart and a narrowing of the arteries (vessels that carry blood).
Symptoms for formaldehyde are watery eyes; burning sensations in the eyes, nose, and throat; coughing; wheezing; nausea; and skin irritation
High levels of lead may cause anemia, weakness, and kidney and brain damage. Very high lead exposure can cause death.
Arsenic poisoning occurs over a brief period of time, symptoms may include vomiting, abdominal pain, encephalopathy, and watery diarrhea that contains blood. Long-term exposure can result in thickening of the skin, darker skin, abdominal pain, diarrhea, heart disease, numbness, and cancer.
High concentrations of ammonia in air causes immediate burning of the eyes, nose, throat and respiratory tract and can result in blindness, lung damage or death.
The cells divide and die at a relatively constant rate. Thus, the body permanently contains an identical number of cells. Everything is under the control of genes preventing uncontrolled proliferation.
However, they are sometimes victims of mutations and, in a certain context, the cells begin to multiply in an anarchic and uncontrolled way. It is the tumor, which can be benign (non-cancerous) or malignant (cancerous). Sometimes the body manages to get rid of it. Other times, unfortunately, this is not the case.
The cancer cell is an abnormal cell,
* which loses certain normal characters (Morphological and functional) and acquires
new specific characters that are transmitted to the child cells.
* and multiplies in an anarchic and autonomous way escaping the mechanisms of regulation of cell division.
Cancer is characterized by a multiplication of cancer cells that divide by mitosis. The number and the atypical character of the mitoses are in favor of the malignancy, One finds:
• Increase in the number of mitoses with shortening of the interphase.
• Abnormal, multipolar mitosis with irregular distribution of chromosomes.
It tends to expand (expansive character) in an unlimited way at the expense of the fabric in the which it originated, but while maintaining a certain degree of differentiation related to its original fabric.
<span> The presence of membrane-bound organelles in eukaryotic cells indicates that they are more complex than prokaryotic cells.</span>
Answer:
The correct answer is option d) "damage to the primary motor cortex results only in the loss of both voluntary muscle control and reflexes".
Explanation:
It is false that damage to the primary motor cortex results only in the loss of both voluntary muscle control and reflexes. Many people that suffer from brain damage by strokes suffer from primary motor cortex damage. This damage not only affects voluntary muscle control and reflexes, as it affects muscles movement of any kind and can affect coordination as well.
