Biology Practice Question and Answer
8 Q: Plants are made disease resistant by it?
1721 05ee838b879b5ea388bebebc9
5ee838b879b5ea388bebebc9- 1Kalchisinfalse
- 2Reproductiontrue
- 3Harmonousfalse
- 4heatfalse
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Answer : 2. "Reproduction"
Q: If the radius of a person's blood vessels decreases, what will be the effect on his blood pressure?
1716 05f86b5978a599d39499b39d2
5f86b5978a599d39499b39d2- 1increasetrue
- 2decreasefalse
- 3remain unchangedfalse
- 4None of thesefalse
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Answer : 1. "increase"
Q: Penicillin is obtained from?
1706 05ee21737e9ea010382e59adc
5ee21737e9ea010382e59adc- 1Algaefalse
- 2Fungustrue
- 3Yeastfalse
- 4Lichenfalse
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Answer : 2. "Fungus "
Explanation :
Penicillin is obtained from fungi, specifically a group of molds known as Penicillium. The discovery of penicillin, one of the first widely used antibiotics, is credited to Sir Alexander Fleming in 1928. Fleming observed that the mold Penicillium notatum produced a substance that could inhibit the growth of bacteria. This substance was later named penicillin and became a groundbreaking antibiotic in the field of medicine, revolutionizing the treatment of bacterial infections. Therefore, the correct answer is (B) Fungus.
Q: Soundbox of birds is called____.
1698 1609912d7c4aedb3e8066bdbb
609912d7c4aedb3e8066bdbb- 1Larynxfalse
- 2Pygostylefalse
- 3Synsacrumfalse
- 4Syrinxtrue
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Answer : 4. "Syrinx "
Q: Poultry is a foreign breed of bird with a capacity to lay more eggs.
1682 05ee83729642b746617226212
5ee83729642b746617226212- 1White leghorntrue
- 2Broilerfalse
- 3White Cornishfalse
- 4New Hemispherefalse
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Answer : 1. "White leghorn"
Explanation :
The option that represents a foreign breed of bird known for its capacity to lay more eggs is:
(A) White Leghorn
Explanation:
White Leghorn is a breed of chicken that originated in Italy but is widely used in many countries, including as a popular egg-laying breed in poultry farming. Leghorns are known for their prolific egg production, making them a common choice for commercial egg production.
The other options:
Broiler refers to chickens raised for meat.
White Cornish is a breed known for its meat qualities.
"New Hemisphere" does not appear to refer to a specific poultry breed.
So, the correct answer is (A) White Leghorn.
Q: Pneumonia affects which of the following organs of human body?
1681 05f4368bc77e1d45e845bac4f
5f4368bc77e1d45e845bac4f- 1Kidneysfalse
- 2Lungstrue
- 3Throatfalse
- 4Liverfalse
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Answer : 2. "Lungs "
Q: Higher order biotic level includes
1680 0605d82fe47d9117fefccf5ee
605d82fe47d9117fefccf5ee- 1Populationstrue
- 2Cellsfalse
- 3Genesfalse
- 4Tissuesfalse
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Answer : 1. "Populations"
Q: Which of the following disease is not caused by bacteria?
1670 15f182c35582605560c6d4a91
5f182c35582605560c6d4a91- 1Cholerafalse
- 2Whooping Coughfalse
- 3AIDStrue
- 4Diphtheriafalse
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