A synapse is the gap between the two neurons. At synapse the electrical signals converted into chemicals that can easily cross over the gap and pass on to the next neurons where it again converted into electrical signals.
A synapse is the gap between the two neurons. At synapse the electrical signals converted into chemicals that can easily cross over the gap and pass on to the next neurons where it again converted into electrical signals.
Reflex action is performed by automatically. It is control and coordinated by the spinal cord. It is an involuntary action. Walking is a reaction to the signal transmitted by the nerve to the muscles. Here, thinking is involved. Brain instructs and controls the muscles of the leg to for moving. It iRead more
Reflex action is performed by automatically. It is control and coordinated by the spinal cord. It is an involuntary action.
Walking is a reaction to the signal transmitted by the nerve to the muscles. Here, thinking is involved. Brain instructs and controls the muscles of the leg to for moving. It is a voluntary action.
Variations are important for species survival because variation causes the organism to overcome extreme situations. Organism species occupy well-defined positions in the ecosystem, utilising their reproductive capacity. Even so, for factors beyond the control of the species, such locations will alteRead more
Variations are important for species survival because variation causes the organism to overcome extreme situations. Organism species occupy well-defined positions in the ecosystem, utilising their reproductive capacity.
Even so, for factors beyond the control of the species, such locations will alter, and can even destroy the entire species. If any differences in all of these species were to be found in a few individuals, they would have a chance of surviving.
Variations can be beneficial or harmful according to the ecological niche of the organism. A variation suitable for the particular niche is selected by nature in evolution. Thus variations are necessary for the survival of the species. Variation is important for the evolution of the species.
For example: A population of heat resistant bacteria in the temperature of the water survives if the temperature of water increases by global warming but most other bacteria would die.
Importance of DNA copying in reproduction is:- 1) It contains information about inheritance from parents to offspring. 2) It codes for proteins required by an individual. 3) If DNA is not copied during reproduction, correct proteins will not be formed and the structure of the individual will be entiRead more
Importance of DNA copying in reproduction is:-
1) It contains information about inheritance from parents to offspring.
2) It codes for proteins required by an individual.
3) If DNA is not copied during reproduction, correct proteins will not be formed and
the structure of the individual will be entirely different.
4) Errors in DNA copying will lead to evolution.
5) It makes the organism look similar to each other.
All the variations in the species do not have equal chances of survival in the environment. The survival of the variations depends upon the nature of variation. Different individuals have different chances. Selection of variants by environmental factors forms the basis for evolutionary processes. ThRead more
All the variations in the species do not have equal chances of survival in the environment. The survival of the variations depends upon the nature of variation. Different individuals have different chances. Selection of variants by environmental factors forms the basis for evolutionary processes. These variations may lead to increased survival advantages of the individuals due to positive adoption of traits or may merely contribute to the genetic drift.
What happens at the synapse between two neurons?
A synapse is the gap between the two neurons. At synapse the electrical signals converted into chemicals that can easily cross over the gap and pass on to the next neurons where it again converted into electrical signals.
A synapse is the gap between the two neurons. At synapse the electrical signals converted into chemicals that can easily cross over the gap and pass on to the next neurons where it again converted into electrical signals.
See lessWhat is the difference between a reflex action and walking?
Reflex action is performed by automatically. It is control and coordinated by the spinal cord. It is an involuntary action. Walking is a reaction to the signal transmitted by the nerve to the muscles. Here, thinking is involved. Brain instructs and controls the muscles of the leg to for moving. It iRead more
Reflex action is performed by automatically. It is control and coordinated by the spinal cord. It is an involuntary action.
See lessWalking is a reaction to the signal transmitted by the nerve to the muscles. Here, thinking is involved. Brain instructs and controls the muscles of the leg to for moving. It is a voluntary action.
Why is variation beneficial to the species but not necessarily for the individual?
Variations are important for species survival because variation causes the organism to overcome extreme situations. Organism species occupy well-defined positions in the ecosystem, utilising their reproductive capacity. Even so, for factors beyond the control of the species, such locations will alteRead more
Variations are important for species survival because variation causes the organism to overcome extreme situations. Organism species occupy well-defined positions in the ecosystem, utilising their reproductive capacity.
See lessEven so, for factors beyond the control of the species, such locations will alter, and can even destroy the entire species. If any differences in all of these species were to be found in a few individuals, they would have a chance of surviving.
Variations can be beneficial or harmful according to the ecological niche of the organism. A variation suitable for the particular niche is selected by nature in evolution. Thus variations are necessary for the survival of the species. Variation is important for the evolution of the species.
For example: A population of heat resistant bacteria in the temperature of the water survives if the temperature of water increases by global warming but most other bacteria would die.
What is the importance of DNA copying in reproduction?
Importance of DNA copying in reproduction is:- 1) It contains information about inheritance from parents to offspring. 2) It codes for proteins required by an individual. 3) If DNA is not copied during reproduction, correct proteins will not be formed and the structure of the individual will be entiRead more
Importance of DNA copying in reproduction is:-
See less1) It contains information about inheritance from parents to offspring.
2) It codes for proteins required by an individual.
3) If DNA is not copied during reproduction, correct proteins will not be formed and
the structure of the individual will be entirely different.
4) Errors in DNA copying will lead to evolution.
5) It makes the organism look similar to each other.
How does the creation of variations in a species promote survival?
All the variations in the species do not have equal chances of survival in the environment. The survival of the variations depends upon the nature of variation. Different individuals have different chances. Selection of variants by environmental factors forms the basis for evolutionary processes. ThRead more
All the variations in the species do not have equal chances of survival in the environment. The survival of the variations depends upon the nature of variation. Different individuals have different chances. Selection of variants by environmental factors forms the basis for evolutionary processes. These variations may lead to increased survival advantages of the individuals due to positive adoption of traits or may merely contribute to the genetic drift.
See less