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- Question
Which blood group is universal donor?
Options- A. O+
- B. O?
- C. AB?
- D. AB+
- Correct Answer
- O?
- 1. Night Blindness is caused by deficiency of which of the following Vitamin?
Options- A. Vitamin B
- B. Vitamin C
- C. Vitamin K
- D. Vitamin A Discuss
- 2. Alveoli is related to which of the following system of human body?
Options- A. Circulatory system
- B. Excretory system
- C. Reproductive system
- D. Respiratory system Discuss
- 3. What is full form of BOD?
Options- A. Biological Oxygen Deficit
- B. Biological Oxygen Difference
- C. Biological Oxygen Demand
- D. Biological Oxygen Distribution Discuss
- 4. Which one of the following with regard to Aridisol, one of the soil orders, is not correct?
Options- A. Lack of water for plants during most part of the years
- B. High organic matter
- C. Large accumulation of carbonates at depth
- D. Absence of deep wide cracks Discuss
- 5. The mammalian heart is myogenic and it is regulated by nerves. The heartbeat originates from
Options- A. sinoatrial node
- B. QRS wave
- C. T wave
- D. hepatic portal system Discuss
- 6. In which of the following class can we put Adrenaline?
Options- A. Hormone
- B. Enzyme
- C. Protein
- D. Fat Discuss
- 7. In Animal Kingdom classification, which of the following is not a Phylum?
Options- A. Mollusca
- B. Chordata
- C. Coelomates
- D. Anneldia Discuss
- 8. __________ is the interaction in which one species benefits and the other is neither harmed nor benefited.
Options- A. Predation
- B. Commensalism
- C. Competition
- D. Parasitism Discuss
- 9. Which organ does detoxification and produces chemicals needed for digestion?
Options- A. Salivary glands
- B. Pancreas
- C. Thyroid gland
- D. Liver Discuss
- 10. __________________ is a drug or substance that makes you feel relaxed and makes your body work and react more slowly.
Options- A. Antidote
- B. Analgesic
- C. Antihistamine
- D. Depressant Discuss
Biology problems
Search Results
Correct Answer: Vitamin A
Correct Answer: Respiratory system
Correct Answer: Biological Oxygen Demand
Correct Answer: High organic matter
Explanation:
All are correct except B as Aridisol is just like sand like soil as in Arid region e.g. In Rajasthan, so there will be very less amount of organic matter.
Correct Answer: T wave
Explanation:
The mammalian heartis called myogenic (myo = muscle, genie = originating from). It means the heart beat or the activities of the heart are auto regulated which originates from a muscle called nodal tissue.In the human heart,heartbeat originates and contraction is initiated by a special modified heart muscle known as sinoatrial node. It is located in the right atrium; while the QRS waves are the depolarisation of the ventricles, which initiates the ventricular contraction.The T-wave represents the repolarisation,that is, the return of the ventricles from excited tonormal state.Hepatic portal system is the unique vascular connection that exists between the digestive tract and liver. This vein carries blood from intestine to the liver.
Correct Answer: Hormone
Correct Answer: Coelomates
Correct Answer: Commensalism
Correct Answer: Liver
Correct Answer: Depressant
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