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olchik [2.2K]
2 years ago
12

"tobacco smoke is responsible for what percentage of lung cancer deaths?"

Biology
1 answer:
-BARSIC- [3]2 years ago
7 0
It has been estimated that active tobacco smoking causes close to 90% of lung cancer cases and is the cause of 87% of lung cancer deaths.
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most modern plants are flowering plants, or angiosperms what is the importance of angiosperms to humans​
Umnica [9.8K]

Answer:

Angiosperms

Explanation:

Angiosperms are important to humans in many ways, but the most significant role of angiosperms is as food. Wheat, rye, corn, and other grains are all harvested from flowering plants.

6 0
2 years ago
Hopefully this is it but whats the andwer to this-
kompoz [17]

Answer:

the answer to this question is B i believe

7 0
2 years ago
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Column D: Which organism(s) eat this organism? (There could be many, but just list one or two.)
alexira [117]
Bacteria eats other bacteria
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What are the three types of muscle and where do we find?
Naily [24]
Smooth muscles- protects the organs
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5 0
3 years ago
Why are protozoa significant? Select all that apply. Protozoa contaminate the water supply. Protozoa do not contribute to a food
Luba_88 [7]

Answer: Protozoa contaminate the water supply.

Some protozoa are parasites and cause diseases like malaria.

Protozoa have an important role in the food chain.

Protozoa are parasitic or free living single celled eukaryotic organisms. They are mostly found in water bodies.

Protozoa contaminate the water supply: Some of the protozoan species which are released from the human feces usually contaminate thee water, and causes waterborne infections in humans. Examples are Cryptosporium and Giardia. The infection occurs through drinking water or swallowing water from swimming pool.

Some protozoa are parasites and cause diseases like malaria: The Plasmodium is the genus belonging to the protozoan parasites. This malarial parasite is transmitted by female Anopheles mosquitoes to humans. The parasite multiply in the red blood cells causes symptoms like fever, anemia, flue, illness and may also cause coma and death.

Protozoa have an important role in the food chain: The protozoa species plays many roles in the food chain, they act as consumers, predators or prey, herbivores and decomposers. Their main function is to control the population of other species in the same habitat. They engulf small single celled bacteria, hence prevents excessive bacterial colonization act as predator. They also feed upon the algal species therefore, act as herbivores. They act as decomposers, as they feed upon the organic matter present in the bottom of the aquatic water body. They are the source of food for large worm and insect species.


5 0
3 years ago
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