Options:
- A. Psilopsida
- B. Lycopsida
- C. Sphenopsida
- D. Pteropsida
View Answer
B. Lycopsida
Biology
The part of sporophyte which is called sporangium is____________?
Options:
- A. Capsule
- B. Foot
- C. Stalk
- D. None of these
View Answer
A. Capsule
Which type of the receptors are present in the ear__________________?
Options:
- A. Chemoreceptors
- B. Mechanoreceptors
- C. Photoreceptors
- D. Thermoreceptors
View Answer
B. Mechanoreceptors
At the induction of action potential opening of Na+ gate with influx of Na+ is a ___________ processes?
Options:
- A. Active transport
- B. Passive transport
- C. Diffusion
- D. none of these
View Answer
B. Passive transport
Which of the followings is missing from the nervous system of planaria_____________?
Options:
- A. Ganglia
- B. Longitudinal nerves
- C. Lateral nerves
- D. none of these
View Answer
D. none of these
Those bacteria which are fully dependent upon their host for nutrition are called__________?
Options:
- A. Heterotrophic bacteria
- B. Chemosynthetic bacteria
- C. Saprophytic bacteria
- D. Parasitic bacteria
View Answer
D. Parasitic bacteria
Both radial and bilateral symmetry is found in the phylum____________?
Options:
- A. Protozoa
- B. Porifera
- C. Echinodermata
- D. None of these
View Answer
C. Echinodermata
The skeleton of the sponges is in the form of variously shaped needle like structures called___________?
Options:
- A. Stripules
- B. Spicules
- C. Brails
- D. Spines
View Answer
B. Spicules
Which of the following are motile zooids in cnidarians?
Options:
- A. Polyps
- B. Medusae
- C. Both of these
- D. None of these
View Answer
B. Medusae
Exoskeoeton of coelenterates terates is made up to__________?
Options:
- A. Calcium
- B. Silica
- C. Chitin
- D. Both A & B
View Answer
A. Calcium