Video – Page 46

Balance in Nature

Recognise population as an integral part of the community
Explain that different population of organisms make up a community.
List factors that may affect changes in population
Explain the term dynamic equilibrium as related to different population in a climax community
Recognise the approximately constant numbers of individuals in a population despite fluctuation
List some family planning methods in human community.

Ecology of Population

Define the term succession.
Distinguish between primary and secondary succession.
Describe the series of changes that often culminate in a stable ecosystem.
Discover a definite sequence of plant colonization.
Describe the characteristics of a stable community and recognize the climax of succession.
Define the term overcrowding.
State factors that may cause overcrowding.
State the effects of overcrowding.
State measures adopted in nature to avoid overcrowding.
State the causes of food shortage.
List the effects of food shortage.
Infer that food has a direct influence on mortality on animal population.

Ecology of Population

Define the term succession.
Distinguish between primary and secondary succession.
Describe the series of changes that often culminate in a stable ecosystem.
Discover a definite sequence of plant colonization.
Describe the characteristics of a stable community and recognize the climax of succession.
Define the term overcrowding.
State factors that may cause overcrowding.
State the effects of overcrowding.
State measures adopted in nature to avoid overcrowding.
State the causes of food shortage.
List the effects of food shortage.
Infer that food has a direct influence on mortality on animal population.

Sense Organs

List the major sense organs and infer their locations.
Describe the organs of smell and taste.
Identify the different parts of the tongue associated with sweetness, bitterness, salty and sore taste.
Draw the skin showing the different receptors present.
Describe the structure of the mammalian ear.
Explain the functions of the ear (hearing and balance).
Describe the mammalian eye and explain the functions of its various parts.
Explain the functions of the eye:
– image formation
– accommodation
Explain the terms myopia, hypermetropia, astigmatism, cataracts and night blindness
Name the kind of lens that can be used to correct myopic and hypermetropia defects.

Sense Organs

List the major sense organs and infer their locations.
Describe the organs of smell and taste.
Identify the different parts of the tongue associated with sweetness, bitterness, salty and sore taste.
Draw the skin showing the different receptors present.
Describe the structure of the mammalian ear.
Explain the functions of the ear (hearing and balance).
Describe the mammalian eye and explain the functions of its various parts.
Explain the functions of the eye:
– image formation
– accommodation
Explain the terms myopia, hypermetropia, astigmatism, cataracts and night blindness
Name the kind of lens that can be used to correct myopic and hypermetropia defects.

Sense Organs

List the major sense organs and infer their locations.
Describe the organs of smell and taste.
Identify the different parts of the tongue associated with sweetness, bitterness, salty and sore taste.
Draw the skin showing the different receptors present.
Describe the structure of the mammalian ear.
Explain the functions of the ear (hearing and balance).
Describe the mammalian eye and explain the functions of its various parts.
Explain the functions of the eye:
– image formation
– accommodation
Explain the terms myopia, hypermetropia, astigmatism, cataracts and night blindness
Name the kind of lens that can be used to correct myopic and hypermetropia defects.

Sense Organs

List the major sense organs and infer their locations.
Describe the organs of smell and taste.
Identify the different parts of the tongue associated with sweetness, bitterness, salty and sore taste.
Draw the skin showing the different receptors present.
Describe the structure of the mammalian ear.
Explain the functions of the ear (hearing and balance).
Describe the mammalian eye and explain the functions of its various parts.
Explain the functions of the eye:
– image formation
– accommodation
Explain the terms myopia, hypermetropia, astigmatism, cataracts and night blindness
Name the kind of lens that can be used to correct myopic and hypermetropia defects.

Nervous Co-ordination

Locate the position of the CNS (brain and spinal cord) in a dissected vertebrate.
Describe the structure of the brain and explain the functions of its various organs.
Describe the spinal cord and explain its function
State the structural difference between the brain and spinal cord
Identify the PNS (Peripheral Nervous System) and describe its function.
Describe typical neuron
Group neurons according to functions as found in vertebrates and explain their functions.
Explain the process of impulse transmission.
Distinguish between a reflex action and a conditioned reflex action giving a few examples of each

Nervous Co-ordination

Locate the position of the CNS (brain and spinal cord) in a dissected vertebrate.
Describe the structure of the brain and explain the functions of its various organs.
Describe the spinal cord and explain its function
State the structural difference between the brain and spinal cord
Identify the PNS (Peripheral Nervous System) and describe its function.
Describe typical neuron
Group neurons according to functions as found in vertebrates and explain their functions.
Explain the process of impulse transmission.
Distinguish between a reflex action and a conditioned reflex action giving a few examples of each

Nervous Co-ordination

Locate the position of the CNS (brain and spinal cord) in a dissected vertebrate.
Describe the structure of the brain and explain the functions of its various organs.
Describe the spinal cord and explain its function
State the structural difference between the brain and spinal cord
Identify the PNS (Peripheral Nervous System) and describe its function.
Describe typical neuron
Group neurons according to functions as found in vertebrates and explain their functions.
Explain the process of impulse transmission.
Distinguish between a reflex action and a conditioned reflex action giving a few examples of each

Nervous Co-ordination

Locate the position of the CNS (brain and spinal cord) in a dissected vertebrate.
Describe the structure of the brain and explain the functions of its various organs.
Describe the spinal cord and explain its function
State the structural difference between the brain and spinal cord
Identify the PNS (Peripheral Nervous System) and describe its function.
Describe typical neuron
Group neurons according to functions as found in vertebrates and explain their functions.
Explain the process of impulse transmission.
Distinguish between a reflex action and a conditioned reflex action giving a few examples of each

Regulation of Internal Environment (i)

List the main organs and substances involved in homeostasis (control mechanism).
Describe the structure and functions of these organs: kidney and liver.
Name some kidney diseases and explain their symptoms and effects.
Name some liver diseases and briefly explain their symptoms and effects.
Discuss the remedy for unhealthy conditions kidney and the liver.
Explain what hormones are
List some endocrine glands, their positions in the body and their functions.
State the effect of overproduction and underproduction of these hormones.
Identify the mammalian skin under the microscope.
Draw and label the main structures of the skin.
State the functions of the mammalian skin.
State a few ways to care for the skin.

Regulation of Internal Environment (i)

List the main organs and substances involved in homeostasis (control mechanism).
Describe the structure and functions of these organs: kidney and liver.
Name some kidney diseases and explain their symptoms and effects.
Name some liver diseases and briefly explain their symptoms and effects.
Discuss the remedy for unhealthy conditions kidney and the liver.
Explain what hormones are
List some endocrine glands, their positions in the body and their functions.
State the effect of overproduction and underproduction of these hormones.
Identify the mammalian skin under the microscope.
Draw and label the main structures of the skin.
State the functions of the mammalian skin.
State a few ways to care for the skin.

Regulation of Internal Environment (i)

List the main organs and substances involved in homeostasis (control mechanism).
Describe the structure and functions of these organs: kidney and liver.
Name some kidney diseases and explain their symptoms and effects.
Name some liver diseases and briefly explain their symptoms and effects.
Discuss the remedy for unhealthy conditions kidney and the liver.
Explain what hormones are
List some endocrine glands, their positions in the body and their functions.
State the effect of overproduction and underproduction of these hormones.
Identify the mammalian skin under the microscope.
Draw and label the main structures of the skin.
State the functions of the mammalian skin.
State a few ways to care for the skin.

Regulation of Internal Environment (i)

List the main organs and substances involved in homeostasis (control mechanism).
Describe the structure and functions of these organs: kidney and liver.
Name some kidney diseases and explain their symptoms and effects.
Name some liver diseases and briefly explain their symptoms and effects.
Discuss the remedy for unhealthy conditions kidney and the liver.
Explain what hormones are
List some endocrine glands, their positions in the body and their functions.
State the effect of overproduction and underproduction of these hormones.
Identify the mammalian skin under the microscope.
Draw and label the main structures of the skin.
State the functions of the mammalian skin.
State a few ways to care for the skin.