This drug inhibits the growth of bacterial cells but not human cells. This is an example of the selective toxicity of antibiotics.
Folic acid is an essential component for all cells to synthesize nucleic acids (DNA and RNA). Human cells do not synthesize folic acid and they take it through food. Bacterial cells are impermeable to folic acid and hence they need to synthesize their own folic acid.
Antibiotics target the metabolic pathway of folic acid synthesis in bacteria by inhibiting one of the enzymes in this pathway. These drugs are only toxic to bacteria but not to humans because humans do not have the folic acid synthesis pathway and hence they do not get affected by the action of the antibiotic. This is known as the selective toxicity of antibiotics.
These antibiotics are designed in a way to target the infecting agent (bacteria) while rendering minimal or no toxicity to the host (humans).
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Your answer would be the first one “prophase”
Explanation - prophase
During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes. Chromosomes are made of a single piece of DNA that is highly organized.
Answer:
The correct option is: a. parotoid gland
Explanation:
Cane toads, also known as Bufo marinus or Rana marina Linnaeus, are the giant old species of the terrestrial true toads. The female cane toads are longer than the male cane toads.
The skin of the cane toad is highly toxic. An adult cane toad has large parotoid gland behind each eye, which secretes a milky-white toxic fluid called bufotoxin.
by growing tress and by putting down hydro mulch as needed
Answer:
organ systems because it contains more cells
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