There are many types of mutations. Due to some properties of the DNA, some mutations can be harmless, some can change the function of a cell. A cancerous cell is a cell that don't stop to be made because of a malfuntion of the DNA or a chimical factor.<span>
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Answer and Explanation:
When talking about heart diseases, there are numerous factors that may aggraviate or increase the risk for heart disease, such as lifestyle choices including diet, drug consumption, smoking, etc.
- <u>High blood cholesterol levels</u> - consuming food high in cholesterol leads to the congregation of extra cholesterol in the the arteries.
<u>Solutions</u>: reduce the consumption of food that is high in cholesterol, such as eggs, cheese, and meat (especially red meat).
- <u>Low physical activity</u> - increases the probabilities of having obesity and high cholesterol, which could lead to heart disease.
<u>Solutions</u>: practice exercise often, e.g. a walk in the park every evening, going to the gym, running, swimming, etc.
- <u>Smoking</u> - this increases the probability of having a heart disease as it damages both the heart and blood vessels.
<u>Solutions</u>: avoid smoking at all costs.
Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes. However, unlike prokaryotic cells, eukaryotic cells have: a membrane-bound nucleus. numerous membrane-bound organelles (including the endoplasmic reticulum, Golgi apparatus, chloroplasts, and mitochondria)
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The statement that best explains why cells were observed in more detail using a compound microscope than a simple microscope is " A compound microscope has greater magnification ability than a simple microscope." The simple microscope on uses one lense or a group in only unit. The correct answer is A.
The correct answer is chorionic villus sampling.
Chorionic villus sampling is a kind of prenatal diagnosis to find the genetic or chromosomal disorders in the fetus. The transcervical method is done by administering a thin plastic tube via the cervix and vagina to reach the placenta. A small sample of chorionic villus tissue is then withdrawn.
The chorionic villi are the projections of placental tissue, which share the genetic makeup of the baby. The chorionic villus sampling is generally done between the weeks 10 and 13 of pregnancy.
