Which of the followings is missing from the nervous system of planaria
A. Ganglia
B. Longitudinal nerves
C. Lateral nerves
D. none of these
Which of the followings is missing from the nervous system of planaria Read More »
Biology
Co-ordination in man is brought about by
A. Nervous system
B. Endocrine system
C. Both of these
D. none of these.
Co-ordination in man is brought about by Read More »
Hydra has___________?
A. Brain
B. Nerves
C. Neuron-cells
D. All of these
Hydra has___________? Read More »
Which of the followings are effectors
A. Muscles
B. Glands
C. Sensory organs
D. Both ‘a’ & ‘b’
Which of the followings are effectors Read More »
Co-ordination results in_
A. Regulation of body functions
B. Organization of body functions
C. Integration of body functions
D. All of these
Co-ordination results in_ Read More »
Any change in the environment of an organism is called
A. Stimulus
B. Variation
C. Response
D. Reaction
Any change in the environment of an organism is called Read More »
Which of the following are responsible for the detection of changes in environment?
A. Receptors
B. Neurons
C. Effectors
D. All of these
Which of the following are responsible for the detection of changes in environment? Read More »
Maximum speed of nerve impulse transmission is
A. 100 m/sec
B. 110 m/sec
C. 120m/sec
D. 130 m/sec.
Maximum speed of nerve impulse transmission is Read More »
Which of the following has no central nervous system?
A. Hydra
B. Man
C. Planaria
D. Cockroach
Which of the following has no central nervous system? Read More »
Na+ -K+ ATPase pump is important for
A. Maintenance of resting potential
B. Massive out flux of K+ after depolarization
C. Recovery of resting potential
D. Conversion of resting potential into action potential
Na+ -K+ ATPase pump is important for Read More »