All the animals of the grade radiata are____________?
All the animals of the grade radiata are____________?
A. Diploblastic
B. Triploblastic
C. Both
D. Unicellular
All the animals of the grade radiata are____________?
A. Diploblastic
B. Triploblastic
C. Both
D. Unicellular
Addition of salts and other solutes from other cells into xylem sap, __________ the water potential of the xylem sap
A. Increases.
B. Lowers.
C. Doesn’t effect.
D. Maintains.
A. fertilization
B. ovulation
C. implantation
D. none of these
The single main opening of the sponge cavity is____________?
A. Osculum
B. Ostia
C. Spongocoel
D. None of these
Chemically auxins are____________?
A. Indole propionic acid.
B. Indole carboxylic acid.
C. Indole acetaldehyde
D. Indole acetic acid.
For which of the following no preventive vaccine is available?
A. HAV
B. HBV
C. HCV
D. HEV