Mould growing on a tomato that is sitting on a countertop be used as evidence for the spontaneous generation theory.
<h3>What do you mean by spontaneous generation theory?</h3>
According to the hypothesis of spontaneous generation, the emergence of life things from nonliving materials was both common and predictable. It was proposed that some forms, like fleas, may develop from inanimate substances like dust or that maggots could develop from decomposing human flesh.
In addition to causing postharvest rot during harvest and storage, a gray mold of tomatoes can also spread a number of other diseases, such as damping off and blight. A fungus with a host range of over 200 plants causes gray mold on tomato plants. It will be evidence for spontaneous generation theory.
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Answer:Ways of protecting one's self from human sources of biological hazards include: Effective use of personal protective equipment such as hand gloves, nose masks, face cover, shoe cover.
Explanation:Human sources of biological hazards may include waste products from human such as faeces, urine and also fluids such as blood from bleeding wound, saliva and so on. These substances may harbor bacterial and viral infections which may result in biological hazards. Therefore, good personal hygiene and use of personal protective equipment will protect one from biological hazards related to human sources.
They are collagen fibers, reticular fibers, and elastic fibers.
There are four categories a nurse should use: Emergent
category, Urgent category, Nonurgent category, Expectant category.
<span>In emergency category, the clients who have
life-threatening injuries are given high priority. In urgent category, the
clients who have major injuries but not life threatening are given second
highest priority. In non-urgent category, the clients with minor and not life threatening
injuries are given next highest priority and in expectant category, the clients
who are not predictable to live<span> and will be allowed to die naturally are
given lowest priority.</span></span>
DNA backbone is made up of deoxyribose monomer sugars as the basic unit that are covalently connected in chains. Each deoxyribose sugar is a five (5)-carbon ring. The 5’ carbon covalently bonds with a phosphate while the 3’ carbon bonds to the next deoxyribose carbon ring. The 1’ carbon is covalently bonded to a nitrogenous base (either Adenine, Thymine, Cytosine, or Guanine ).
In DNA, Cytosine pairs with Guanine, and Adenine pairs with Thymine. In RNA, the same principle applies only that RNA has no Adenine base but Uracil. Therefore, Thymine pairs with Uracil while, similar to in DNA, Cytosine pairs with Guanine.
Covalent bonds occur in virtually all the bonds except between nitrogenous base pairs of opposite strands of DNA.
The central Dogma stipulates that DNA --à RNA--àProtein. During transcription, information on DNA is copied to messenger- RNA. In eukaryotes messenger- RNA moves to the cytoplasm where it is then translated to protein by ribosomes. In prokaryotes, since there is no nucleus, the mRNA is translated even as transcription continues.
