Answer:
Malaria is a life-threatening mosquito-borne blood disease. The Anopheles mosquito transmits it to humans. The parasites in mosquitoes that spread malaria belong to the Plasmodium genus. Over 100 types of Plasmodium parasite can infect a variety of species.
Answer: Option B
Explanation: The first line of defense acts a barrier and does not allows the foreign materials to enter inside the body. It includes chemical and physical barriers that are always ready to protect the body from infection.
Example: Skin and mucous membrane.
Skin is largest organ and it acts as a barrier between pathogens and human body. It acts a waterproof material and the pathogens cannot get inside through skin unless the skin is broken.
Mucous membranes also acts as first line of defense and breaks the cell wall of many bacteria entering through the openings of the body.
So, skin and mucous membrane are the first line of defense.
The answer is the septic tank or A
Answer:
Any factor in the environment that does not depend on the number of members in a population.
Explanation:
Density independent limiting factors also cause population sizes to increase. For example, the water from a flash flood increases the growth of vegetation, thereby providing more food for primary consumers in the ecosystem.
The cells are angular, rigid, and have a cell wall made up of cellulose. This sample most likely came from a plant.
- Chloroplasts, cell walls, and intracellular vacuoles are a few characteristics that set plant cells apart.
- Chloroplasts are responsible for photosynthesis, cell walls provide plants the strength to stand upright, and vacuoles control how cells handle water and store other molecules.
- Plants have a specific cell wall in addition to a cell membrane. Cellulose, a thick material containing several sugar units, makes up this.
- This allows plants to seem rigid and robust because of their thick feature.
- Human cells, in contrast, lack a cell wall and are more flexible and spherical than plant cells.
learn more about plant cell here: brainly.com/question/913732
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