1. Which is not an animal of the phylum Cnidaria?
Aurelia
Obelia
Scypha
Physalia
2. What is the percentage of nitrogen in urea fertilizer?
38
48
46
42
3. In which sub-phylum, notochord remains present only in the tail during larva phase?
cephalochordatah
emichordata
urochordata
vertebrata
4. Which is the totipotent cell of Hydra?
interstitial cell
gland cell
sensitive cell
nerve cell
5. Which is the correct order according to fuel value (BTU)?
bituminous > > > lignite > > > fuel oil
lignite > > > bituminous > > > wood
fuel oil > pit coal >- wood
lignite > > > bituminous > > > fuel oil