Options:
- A. Proterozoic era
- B. Mesozoic era
- C. Paleozoic era
- D. Cenozoic era
View Answer
D. Cenozoic era
Biology
All of the following are true for Platyhelminthes except____________?
Options:
- A. Flatwarms
- B. Triploblastic
- C. Coelomate
- D. Bilateral symmetry
View Answer
C. Coelomate
Antheridia and archegonia are born on ______________ in bryophytes.
Options:
- A. Sporophyte
- B. Gametophyte
- C. Both of these
- D. None of these
View Answer
B. Gametophyte
Bryophtes are called amphiabians of plant world because:
Options:
- A. Bryophytes like amphibian ancestors are one of the most primitive organisms in this world.
- B. Bryophytes like amphibian live in damp shady places and close to water body.
- C. Amphibians have close relation with bryophytes in their habitat.
- D. All of these
View Answer
B. Bryophytes like amphibian live in damp shady places and close to water body.
Mosses are included in sub-division of ___________?
Options:
- A. Anthoceropsida
- B. Hepaticopsida
- C. Bryopsida
- D. Lycopsida
View Answer
C. Bryopsida
The first cell of the sporophyte generation is______________?
Options:
- A. Oospore
- B. Spore mother cell
- C. Spore
- D. Gamete
View Answer
A. Oospore
Which type of sensory structures carrying the touch sensations are present in papillae extending into ridges of the fingertips___________________?
Options:
- A. Hair end organs
- B. Meissner
- C. Pacinian corpuscles
- D. None of these
View Answer
B. Meissner
Insulin and glucagons are __________ in nature.
Options:
- A. Protein
- B. Amino acid derivative
- C. Polypeptide
- D. Steroid
View Answer
A. Protein
In which of the following neurons length of dendrite is greater than axon_______________?
Options:
- A. Sensory neuron
- B. Motor neuron
- C. Associative neuron
- D. none of these.
View Answer
A. Sensory neuron
Example of bacteria requiring low concentration of oxygen is__________?
Options:
- A. Campylobactor
- B. spirocheta
- C. E-coli
- D. Pseudomonas
View Answer
A. Campylobactor