Once you get the item generally focused on the coarse adjustment, you should leave it alone. If you try to move it again, the chance is you'll run into the slide and either knock the specimen or even scratch the microscope's lens. Always use the fine adjustment, and nothing else, once you have set the coarse adjustment to the appropriate level. Hope this helps!
Most important are the many striking similarities between prokaryotes (like bacteria) and mitochondria: Membranes — Mitochondria have their own cell membranes, just like a prokaryotic cell does. DNA — Each mitochondrion has its own circular DNA genome, like a bacteria's genome, but much smaller.
These substances are all mutagens.
<h3>What purposes do mutagens serve?</h3>
Many mutagens are employed to kill cancer cells because they are very harmful to growing cells. Chemotherapy may involve the use of intercalating drugs like daunorubicin and doxorubicin as well as alkylating agents like cyclophosphamide and cisplatin.
<h3>What consequences do mutagens have?</h3>
Additionally, lesions that increase the number of single-stranded regions in the genome may be introduced by mutagens that rapidly degrade DNA, leading to even higher frequencies of recombination.
<h3>How do mutagens cause harm?</h3>
A mutagen is a substance that can permanently alter cells' genetic material, perhaps resulting in heritable genetic harm or cancer.
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Answer:
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form
Explanation:
Silicate Minerals. The first classification of minerals is silicate minerals.
Native Element Minerals. Native elements refer to minerals that only contain the atoms of one type of element.
Carbonate Minerals.
Halide Minerals.
Oxide Minerals.
Mineral nutrients for the human body include: iron, calcium, copper, sulfur, phosphorus, magnesium and many others. An archaic use of the word "mineral" comes from the Linnaean taxonomy in which all things can be assigned to the animal, vegetable, and mineral kingdoms.
Answer:
it controls the distribution of minerals, rocks, and soils, the distribution of mountains, position of continents, and the location of major rivers and flood plains.