Biology Practice Question and Answer
8 Q: Sponges belong to phylum ______ of the animal kingdom.
431 064c2509e9e9013486a756bb1
64c2509e9e9013486a756bb1- 1Echinodermatafalse
- 2Poriferatrue
- 3Aschelminthesfalse
- 4Molluscafalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Porifera"
Explanation :
1. Sponge belongs to Porifera phylum of the animal kingdom.
2. These are primitive multicellular animals. The study of sponges is known as para zoology.
3. Sponges are mostly irregular in shape and have radial symmetry.
4. The body of a sponge has two layers-
- Epidermis: This is the outer layer that helps move water in and out.
- Mesohyl: This is the middle layer which contains the cells of the sponge.
Q: What does our digestive system consist of?
426 063c7ac14bdbddb32fd9cd995
63c7ac14bdbddb32fd9cd995- 1Alimentary canal and associated glandstrue
- 2Digestive glands onlyfalse
- 3Digestive glands onlyfalse
- 4Mucous glandsfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Alimentary canal and associated glands"
Q: How many teeth in man come out twice?
426 063cfbbaa0d9e560db8e684e0
63cfbbaa0d9e560db8e684e0- 14false
- 212false
- 320true
- 428false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "20"
Q: Which one of the following is the process involved in photosynthesis?
425 062ac7badf5480112e46cb4f2
62ac7badf5480112e46cb4f2- 1Food is oxidized to release carbon dioxide and waterfalse
- 2Oxygen is taken, and carbon dioxide and water vapor are given outfalse
- 3Potential energy is released to form free energyfalse
- 4Free energy is converted into potential energy and storedtrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Free energy is converted into potential energy and stored "
Q: Which of the following is incorrect regarding the shapes of the three portions of the small intestine?
424 063c7a80bb338bc336f08b810
63c7a80bb338bc336f08b810- 1Duodenum-C shapefalse
- 2Duodenum-J shapetrue
- 3Ileum-highly coiledfalse
- 4jejunum-long coiledfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Duodenum-J shape"
Q: Which of the following is true about
Atrial Natriuretic Factor :
1) Peptide hormone 2) Increases blood pressure 3) Reduces blood pressure 4) Vaso constrictor 5) Cause vasodialation
424 063c90f95be373f6c954b29ce
63c90f95be373f6c954b29ce- 11, 2 and 4 are truefalse
- 21,3 and 5 are truetrue
- 32 and 4 are truefalse
- 45 only is truefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "1,3 and 5 are true "
Q: The skull bones are immovable because of the presence of highly tensile:
423 063cf8edce144980db7230cf7
63cf8edce144980db7230cf7- 1Aerolar tissuefalse
- 2Tendonfalse
- 3Cartilagefalse
- 4White fibrous tissuetrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "White fibrous tissue"
Q: Epiglottis is made up of which of the following tissues?
418 063c7c2281e8e3f3e1a35f43b
63c7c2281e8e3f3e1a35f43b- 1Ligamentfalse
- 2Tendonfalse
- 3Cartilagetrue
- 4Bonefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice