Typical example of water born disease_______?

Which of the following represents osmoregulatory steps taken by hydrophytes?

A. Increases transpiration by increasing the surface area of the leave.
B. Small and thick leaves to decrease the surface area proportional to the volume of the leave.
C. Stomata closing in sufficient supply, and opening in restricted supply of water.
D. None of these

A. Can be multiplied in culture
B. Self-replication in bacterial cells
C. Can be multiplied in laboratories with the help of enzymes
D. Replicate freely outside bacterial cells

If two ends of fractured bone are opened and kept united via screws and wires drilled in bone substance. This step in fracture repair is called___________?

A. Open reduction.
B. Closed Fixation.
C. Open fixation.
D. Immobilization

Deoxygenated blood first enters in _________ part in fishes?

A. Sinus venosus
B. Right atrium
C. Left atrium
D. Conus arteriosus

Type of sensations carried by nociceptors are_________________?

A. Touch.
B. Temperature.
C. Pressure.
D. Pain

Of the following which one is not the characteristic of green algae?

A. Some green algae possess cell wall with cellulose
B. They are generally accepted as the ancestors of green plants
C. Chlorella is unicellular non-motile green algae
D. None of these