1. microscopic
2. macroscopic
3. conceptual
4. supra-organismic
conceptual
1. population
2. community
3. ecosystem
4. All of these
population
1. protoplasmic
2. apoplasmic substance
3. Both (a) and (b)
4. None of the above
Both (a) and (b)
1. cell walls and cell junctions
2. matrix and fiber of connective tissue
3. intake of water
4. Both (a) and (b)
Both (a) and (b)
1. mimicry
2. predation
3. adaptation
4. camouflage
mimicry
1. inheritable
2. permanent
3. formed due to evolution
4. All of the above
All of the above
1. warm receptors are activated
2. cold receptors are inhibited
3. thermostat becomes operational ordering vas co-constriction of peripheral vessels and stimulation skeletal muscles
4. thermostat becomes operational ordering vas vasodilation of peripheral vessels and activation of sweat glands
thermostat becomes operational ordering vas
co-constriction of peripheral vessels and stimulation
skeletal muscles
1. negative feedback loop
2. thermoreceptors
3. cold receptors
4. warm receptors
negative feedback loop
1. constant
2. often higher than that of environment
3. not allowed to become low due to insulating devices
4. All of the above
All of the above
1. fishes
2. reptiles
3. amphibians
4. birds and mammals
birds and mammals