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- Question
In electro - magnetic radiation, which of the following has greater wave - length than visible light
Options- A. Ultra -violet rays
- B. Infra - red rays
- C. Cosmic rays
- D. x-rays
- Correct Answer
- Infra - red rays
- 1. The inner most membrane that covers the brain is
Options- A. Pleura
- B. Duramater
- C. Pia - mater
- D. Arachnoid membrane Discuss
- 2. The hormone that helps in the implantation of embryo
Options- A. Testosterone
- B. Insulin
- C. Prolactin
- D. Progesterone Discuss
- 3. The type of fracture where bone is broken at several places
Options- A. Complicated fracture
- B. Green stick fracture
- C. Impact fracture
- D. Comminuted fracture Discuss
- 4. Rubella diseases is described first by the scientist
Options- A. Abu Baqre
- B. Ronald Ross
- C. Laveris
- D. Darwin Discuss
- 5. The HIV retrovirus is particularly deadly because
Options- A. I can become AIDS shortly afte being contracted
- B. It attacks the body immune system
- C. Treatments can be dangerous for patients
- D. Its hard to diagnose accurately Discuss
- 6. Cretinism is due to the disorder of the glands
Options- A. Thymus
- B. Parathyroid
- C. Thyroid
- D. Adrenal Discuss
- 7. Which of the following plays an important part in photosynthesis?
Options- A. Chloroplast
- B. Centrosome
- C. Tonoplast
- D. Nematoblast Discuss
- 8. The biogenetic law was proposed by
Options- A. Alfred Russel Wallace
- B. Charles Darwin
- C. Ernst von Haeckel
- D. Lamarck Discuss
- 9. The rate of heartbeat is accelerated by the harmone
Options- A. adrenaline
- B. acetylcholine
- C. thyroxine
- D. pituitrin Discuss
- 10. Food wrapped in news paper is likely to get contaminated by
Options- A. Magnesium
- B. Alluminium
- C. Lead
- D. Copper Discuss
Biology problems
Search Results
Correct Answer: Pia - mater
Correct Answer: Progesterone
Correct Answer: Comminuted fracture
Correct Answer: Abu Baqre
Correct Answer: It attacks the body immune system
Correct Answer: Thyroid
Explanation:
Cretinism is a disease caused by hypothyroidism (less thyroxine formation) . The symptoms of the disease are retardation of mental, physical and sexual developments. potbelly, protruding tongue, dry skin etc are also indicative of this disease.
Correct Answer: Chloroplast
Explanation:
The Chloroplast contains the wonder green pigment chlorophyll which is able to trap solar energy and use it for synthesis of food
Correct Answer: Ernst von Haeckel
Explanation:
The biogenetic law states that ontogeny (study of development) repeats phylogeny (origin from previous group of racial history), The young one of the frog namely the tadpole is like a fish cosidered to be ancestral to frog.
Correct Answer: adrenaline
Explanation:
The hormone adrenaline also called epinephrine is known as a stress harmone. In emotional upset (like fear, anger etc.) this harmone is poured into the blood and it accelerates heart beat. The hormone acetylcholine decelerates heartbeat rate.
Correct Answer: Lead
Explanation:
It gets contaminated by lead
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