Question
Distinguish between : Cerebrum and cerebellum
✓
Answer
| Cerebrum | Cerebellum |
| 1. The cerebrum is the larger part forming 85% of the brain. It has four lobes. | 1. The cerebellum is the smaller part forming 11%. of the brain. It has three lobes. |
| 2. The cerebrum coordinates the functions of the sensory and motor areas. | 2. The cerebellum coordinates the equilibrium of muscular movements during walking and running. |
| 3. The cerebrum plays an important role in receiving the sensory impulses such as touch, pain, heat, cold, etc. | 3. The cerebellum plays an important role in maintaining the posture and balance of the body. |
| 4. The cerebrum is concerned with higher mental faculties such as memory, will and intelligence. | 4. The cerebellum is concerned with muscular mechanism. |
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Read the following and answer any four questions from (i) to (v) given below:
Ananya is a biologist, her research guide assigned project, i.e., to determine the effect ofin tra-specific competition on the growth of sapling of Eucalyptus. For this, she designed an experiment in which two sets of pots were used. ln the first set (set A) only I sapling was planted per pot and in the other set (set B) $16$ saplings were planted per pot. To check for the effect of intra-specific competition on allocation of resources, a decreasing amount of water was added to each set. The results have been graphically indicated. Which of the following conclusions can indicated as follows:
→Ananya is a biologist, her research guide assigned project, i.e., to determine the effect ofin tra-specific competition on the growth of sapling of Eucalyptus. For this, she designed an experiment in which two sets of pots were used. ln the first set (set A) only I sapling was planted per pot and in the other set (set B) $16$ saplings were planted per pot. To check for the effect of intra-specific competition on allocation of resources, a decreasing amount of water was added to each set. The results have been graphically indicated. Which of the following conclusions can indicated as follows:
- Which of the following statements can be concluded from the given study?
- More resources are allocated to the root during low water conditions.
- Competition for water among individuals of a population causes more root growth as compared to individuals who are growing alone.
- Lesser leaves are formed under low water conditions.
- Root growth is higher in individual grown singly as compared to individuals in populations.
- Which of the following associations is an example of competitions?
- Cuscuta and hedge plant.
- Balanus and Cathamalus.
- Cactus and moth.
- Orchid and mango.
- If '+' sign is assigned to beneficial interaction, '-' sign to detrimental and O sign to neutral interaction, then the population interaction of competition refers to:
- +, +
- -, -
- +, -
- +, 0
- lntraspecific competition is more severe due to:
- similar needs.
- similar adaptations.
- common resources.
- all of these.
- Assertion: Two members of a competing species may co-exist.
- Both assertion and reason are true and reason is the correct explanation of assertion.
- Both assertion and reason are true but reason is not the correct explanation of assertion.
- Assertion is true but reason is false.
- Both assertion and reason are false.
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| (2) Superior vena cava | (b) Carries oxygenated blood to all body parts |
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