Biology Practice Question and Answer
8Q: What is the main component of bones and teeth? 15655 05b5cc66de4d2b4197774bfee
5b5cc66de4d2b4197774bfee- 1Calcium Phosphatetrue
- 2Calcium Carbonatefalse
- 3Calcium Nitratefalse
- 4Calcium Sulphatefalse
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Answer : 1. "Calcium Phosphate"
Explanation :
Answer: A) Calcium Phosphate Explanation: The main component of bones and teeth is Calcium Phosphate.
Q: Which tissue forms the gland?
7289 05ee83b9079b5ea388bebfab5
5ee83b9079b5ea388bebfab5- 1epitheliumtrue
- 2musclefalse
- 3nervefalse
- 4connectivefalse
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Answer : 1. "epithelium"
Explanation :
The tissue that forms glands is:
(A) Epithelium
Explanation:
Epithelial tissue is responsible for the formation of glands. Glands are structures that produce and secrete substances such as hormones or enzymes. Epithelial cells can be organized to form glandular tissues, and glands can be classified into two main types: exocrine glands and endocrine glands. Exocrine glands release their secretions through ducts, while endocrine glands release hormones directly into the bloodstream. Epithelial tissue plays a crucial role in the formation and function of both types of glands.
Q: Anthophobia is fear of the following –
5015 05ef1adc37fed557ba2abd42e
5ef1adc37fed557ba2abd42e- 1Flowerstrue
- 2Dogsfalse
- 3Bossfalse
- 4Firefalse
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Answer : 1. "Flowers "
Explanation :
(A) Flowers
Anthophobia is the fear of flowers. People with this phobia may experience anxiety, panic attacks, or other symptoms when they are in the presence of flowers or even just thinking about them. Phobias are irrational fears that can cause significant distress, and they often require psychological or therapeutic intervention for management.
Q: How many types of lavaks are based on color?
4812 05ee83c6e642b74661722686c
5ee83c6e642b74661722686c- 12false
- 23true
- 34false
- 45false
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Answer : 2. "3"
Q: Which disease is caused by cadmium pollution?
4061 05f61cdac80a26b7dab088780
5f61cdac80a26b7dab088780- 1Minamatafalse
- 2Black foot diseasefalse
- 3Dyslexiafalse
- 4Itai-itaitrue
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Answer : 4. "Itai-itai"
Q: Which of the following is true of kinetochores? 3673 05b5cc5ffe4d2b4197774b3f4
5b5cc5ffe4d2b4197774b3f4- 1They are the primary centrosome structures that maintain the attachment of the sister chromatids prior to mitosis.false
- 2They are the sites at which microtubules attach to chromosomes.true
- 3They are located at the center of the centrosome and organize tubulin into spindle fibers.false
- 4They cross at the cell's equator and move against each other, causing the cell to elongate.false
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Answer : 2. "They are the sites at which microtubules attach to chromosomes."
Explanation :
Answer: B) They are the sites at which microtubules attach to chromosomes. Explanation: They are the sites at which microtubules attach to chromosomes.
Q: Plants get water through the roots because of,
3282 05f2911747079852b5537d20b
5f2911747079852b5537d20b- 1viscosityfalse
- 2photosynthesisfalse
- 3elasticityfalse
- 4capillaritytrue
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Answer : 4. "capillarity "
Q: Hugging and kissing of mother to her baby initiates, which of the following hormone for secretion?
2994 05f155dbfcf79540a7533f7e7
5f155dbfcf79540a7533f7e7- 1Follicular Hormonefalse
- 2Oxytocintrue
- 3Insulinfalse
- 4Noradrenalinfalse
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