Answer:
During the New Moon the far side of the Moon is illuminated by the Sun, while the side that faces the Earth lies in darkness so the Moon is invisible. ... As the Moon follows its path from the Full Moon position less and less of the Earth-facing side is illuminated resulting in the “waning” phases.
Explanation:
Answer:
The correct answer is - The tryptophan operon shows C. negative regulation.
Explanation:
Tryptophan is an amino acid, excessively synthesized by the organism, it regulates its transcription through “trp Operon.” In this operon, the corepressor of the tryptophan binds to the repressor protein and gets activated.
This activated repressor now binds to the operator site, and prevents the binding of RNA polymerase enzyme and inhibits the protein synthesis.
Not very well cyanide is deadly. its a poison that kills you from the inside.
In epidemiology, transmission refers to the mechanism by which a pathogen enters the host. A pathogen is a harmful microorganism (e.g., bacteria, viruses) capable of causing illness to a susceptible host.
- In this case, the missing word indicates 'A mode of TRANSMISSION from the source to the host'.
The different types of transmission include:
- Direct contact transmission (e.g., touching, kissing), which triggers the transference of the pathogen to a susceptible host.
- Aerosol transmission (airborne transmission): characterized by the inhalation of small particles (aerosol droplets) exhaled by an infected host.
- Zoonotic transmission: the reservoir is an infected animal.
- Oral transmission: infections caused by direct ingestion of the pathogen.
- Vector-borne transmission: infections transmitted by different animals (i.e., vectors) such as mosquitoes, ticks, fleas, etc.
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