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Control & coordination 
The document discusses control and coordination in the human body. It begins by defining a neuron and describing different types of reflex actions - spinal reflexes which only involve the spinal cord and cerebral reflexes which also involve the brain. It then discusses the reflex arc and components of reflex action. Next, it describes the three main regions of the brain - forebrain, midbrain and hindbrain - and key structures and functions within each region like the cerebrum, cerebellum and brainstem. Finally, it discusses how the brain is protected by membranes, fluid and the skull, and the role of the endocrine system in releasing hormones to coordinate functions throughout the body.
Neural control and coordination ppt presentation class 11 biology ncert based
1. The document provides information about neural control and coordination from the NCERT biology textbook. It describes the structure and function of the nervous system, including neurons, nerve impulses, and reflex actions.
2. Key parts of the central nervous system like the brain, spinal cord, and various brain regions are defined. The processes of vision and hearing are also summarized.
3. Coordination between different body systems like the neural and endocrine systems is explained. Sensory receptors and effector organs are described in the context of reflex arcs.
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Control & coordination
The document discusses control and coordination in the human body. It begins by defining a neuron and describing different types of reflex actions - spinal reflexes which only involve the spinal cord and cerebral reflexes which also involve the brain. It then discusses the reflex arc and components of reflex action. Next, it describes the three main regions of the brain - forebrain, midbrain and hindbrain - and key structures and functions within each region like the cerebrum, cerebellum and brainstem. Finally, it discusses how the brain is protected by membranes, fluid and the skull, and the role of the endocrine system in releasing hormones to coordinate functions throughout the body.
Neural control and coordination ppt presentation class 11 biology ncert based
1. The document provides information about neural control and coordination from the NCERT biology textbook. It describes the structure and function of the nervous system, including neurons, nerve impulses, and reflex actions.
2. Key parts of the central nervous system like the brain, spinal cord, and various brain regions are defined. The processes of vision and hearing are also summarized.
3. Coordination between different body systems like the neural and endocrine systems is explained. Sensory receptors and effector organs are described in the context of reflex arcs.
Chap 7 control and coordination qa
1) The chapter discusses control and coordination in living organisms through the nervous and hormonal systems. It describes the key parts and functions of the nervous system including neurons, synapses, reflex arcs, and the central and peripheral nervous systems.
2) The three main parts of the human brain are the forebrain, midbrain, and hindbrain. The forebrain is responsible for thinking and contains the cerebrum, hypothalamus, and thalamus.
3) Both plants and animals use electrochemical signals and hormones to coordinate responses to stimuli and control various functions. Important plant hormones include auxin, gibberellins, cytokinins, and ethylene, while important animal hormones are produced
Management of natural resources
The document discusses natural resource management in India. It describes renewable and non-renewable natural resources and the need to properly manage resources due to increasing population. The Ganga Action Plan aimed to reduce pollution in the Ganga River from human and industrial waste as well as religious activities. The three R's of reduce, reuse, and recycle are important for environmental conservation. Forests and wildlife are valuable natural resources and various efforts like afforestation and protected areas aim to conserve them. Traditional and community-based approaches to forest management have also shown success in conservation.
Speciation
Speciation is the process by which new species develop from existing species. It occurs when populations become geographically isolated, experience genetic drift through chance changes in gene frequencies, or undergo variations through natural selection. For example, genetic drift can cause gene variants to disappear and reduce genetic variation in a population. While evolution has led to more complex body designs over time, it is not a linear process of progress but rather the production of diverse life forms shaped by their environments.
Binary fission in amoeba
Binary fission is the mode of reproduction in amoeba, where a single parent cell divides into two equal daughter cells. This process of a parent cell splitting into two daughter cells occurs when environmental conditions are favorable, such as when there is plenty of food, water, and a suitable temperature.
Magnetic effect of electric current
A compass needle is placed under a copper wire carrying an electric current. When current is passed through the wire, the compass needle deflects, showing that the current produces a magnetic field that exerts a force on the compass needle. This demonstrates that electricity and magnetism are linked. The magnetic field produced by a current has concentric circular field lines around the wire. Increasing the current increases the magnetic field strength.
sources of energy
There are two main sources of energy: conventional and non-conventional. Conventional sources include fossil fuels like coal, petroleum and natural gas. However, burning fossil fuels causes air and water pollution and global warming. Non-conventional renewable sources include solar, wind, hydropower, biomass and ocean energies. These are better for the environment as they don't cause pollution, but have other disadvantages like high initial costs, need for large land areas, and variability in availability. Overall sources of energy must be evaluated based on the ease and costs of extraction as well as their environmental impacts.
c.b.s.e grade 10 Life processes ppt.
The document discusses the key life processes including nutrition, respiration, transportation, growth and reproduction. It describes the different modes of nutrition like photosynthesis, heterotrophic nutrition and human nutrition. The passage also explains the process of respiration through aerobic and anaerobic pathways and gas exchange in humans via the respiratory and circulatory systems.
Applications of parabola
The document discusses how parabolic shapes help carry forces in suspension bridges by distributing them to the towers. It also explains how parabolic motion occurs due to gravity, with Galileo discovering that all thrown objects follow a parabolic path. Finally, it notes that parabolic reflectors can concentrate heat or sound by reflecting parallel rays to a focus.
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Chap 7 control and coordination qa
1) The chapter discusses control and coordination in living organisms through the nervous and hormonal systems. It describes the key parts and functions of the nervous system including neurons, synapses, reflex arcs, and the central and peripheral nervous systems.
2) The three main parts of the human brain are the forebrain, midbrain, and hindbrain. The forebrain is responsible for thinking and contains the cerebrum, hypothalamus, and thalamus.
3) Both plants and animals use electrochemical signals and hormones to coordinate responses to stimuli and control various functions. Important plant hormones include auxin, gibberellins, cytokinins, and ethylene, while important animal hormones are produced
Management of natural resources
The document discusses natural resource management in India. It describes renewable and non-renewable natural resources and the need to properly manage resources due to increasing population. The Ganga Action Plan aimed to reduce pollution in the Ganga River from human and industrial waste as well as religious activities. The three R's of reduce, reuse, and recycle are important for environmental conservation. Forests and wildlife are valuable natural resources and various efforts like afforestation and protected areas aim to conserve them. Traditional and community-based approaches to forest management have also shown success in conservation.
Speciation
Speciation is the process by which new species develop from existing species. It occurs when populations become geographically isolated, experience genetic drift through chance changes in gene frequencies, or undergo variations through natural selection. For example, genetic drift can cause gene variants to disappear and reduce genetic variation in a population. While evolution has led to more complex body designs over time, it is not a linear process of progress but rather the production of diverse life forms shaped by their environments.
Binary fission in amoeba
Binary fission is the mode of reproduction in amoeba, where a single parent cell divides into two equal daughter cells. This process of a parent cell splitting into two daughter cells occurs when environmental conditions are favorable, such as when there is plenty of food, water, and a suitable temperature.
Magnetic effect of electric current
A compass needle is placed under a copper wire carrying an electric current. When current is passed through the wire, the compass needle deflects, showing that the current produces a magnetic field that exerts a force on the compass needle. This demonstrates that electricity and magnetism are linked. The magnetic field produced by a current has concentric circular field lines around the wire. Increasing the current increases the magnetic field strength.
sources of energy
There are two main sources of energy: conventional and non-conventional. Conventional sources include fossil fuels like coal, petroleum and natural gas. However, burning fossil fuels causes air and water pollution and global warming. Non-conventional renewable sources include solar, wind, hydropower, biomass and ocean energies. These are better for the environment as they don't cause pollution, but have other disadvantages like high initial costs, need for large land areas, and variability in availability. Overall sources of energy must be evaluated based on the ease and costs of extraction as well as their environmental impacts.
c.b.s.e grade 10 Life processes ppt.
The document discusses the key life processes including nutrition, respiration, transportation, growth and reproduction. It describes the different modes of nutrition like photosynthesis, heterotrophic nutrition and human nutrition. The passage also explains the process of respiration through aerobic and anaerobic pathways and gas exchange in humans via the respiratory and circulatory systems.
Applications of parabola
The document discusses how parabolic shapes help carry forces in suspension bridges by distributing them to the towers. It also explains how parabolic motion occurs due to gravity, with Galileo discovering that all thrown objects follow a parabolic path. Finally, it notes that parabolic reflectors can concentrate heat or sound by reflecting parallel rays to a focus.