b. protozoa
One of the four species of protozoan in the genus Plasmodium is responsible for the acute or subacute infectious disease known as malaria.
<h3>A virus or a bacteria causes malaria?</h3>
- A virus or bacteria cannot cause malaria.
- Plasmodium, a parasite that often spreads through infected mosquitoes, is what causes malaria.
- A mosquito consumes Plasmodia that are present in blood when it feeds on an infected human.
<h3>How do protozoa cause malaria?</h3>
- The female anopheles mosquito bite is the primary method of transmission of malaria, a protozoan infection of the red blood cells.
- The Plasmodium genus of protozoa is what causes malaria.
- Four different types of malaria parasites can infect people: Plasmodium malariae, vivax, ovale, and falciparum
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Answer:
Animals making the territory with example Lion, Tiger, hyena among others
Explanation:
Animals marks their territory through secretion of pheromones, some makes sound, it is a form of behavioral act that allows to protect ones territory or boundary
The approximate LD50 of the least toxic substance will be 130 mg/Kg.
- The dose necessary to cause the death of 50% of a population under test after a predetermined test period is known as the LD50 value for a drug.
- Commonly used as a broad indicator of a substance's acute toxicity are LD50 values.
- Greater toxicity is indicated by a lower LD50. A low LD50 of 500 mg/kg or less implies severe toxicity.
- Moderate toxicity is indicated by an LD50 of 500 to 1,000 mg/kg. A modest toxicity level of 1,000 to 2,000 mg/kg is indicated.
- The species is especially vulnerable to the poison if the LD50 is low. The lethal dose (LD50) of a specific poison might change significantly between several animal species.
- Thus out of all the options, LD50 130 mg/kg will have the lowest toxicity and 20 mg/kg will be the highest.
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Answer:
1 ma /b/ correct answer 2 ma /a/ correct answer
