Example of bacteria requiring low concentration of oxygen is__________?
(A) Campylobactor
(B) spirocheta
(C) E-coli
(D) Pseudomonas
Purple non-sulphur bacteria is an example of___________?
(A) Heterotrophic bacteria
(B) Chemosynthetic bacteria
(C) Photosynthetic bacteria
(D) Saprotrophic bacteria
Those bacteria which are fully dependent upon their host for nutrition are called__________?
(A) Heterotrophic bacteria
(B) Chemosynthetic bacteria
(C) Saprophytic bacteria
(D) Parasitic bacteria
Nitrifying bacteria are the examples of___________?
(A) Hetrotrophic bacteria
(B) Chemosynthetic bacteria
(C) Saprophytic bacteria
(D) Parasitic bacteria
E. coli and example of____________?
(A) Aerobic bacteria
(B) Anaerobic bacteria
(C) Facultative bacteria
(D) Microaerophilic
Of the following which one is not the characteristic of triploblasts?
(A) All of them have blood vascular system
(B) They may be coelomate pseudocoelomate or acoelomate
(C) They are included in grade bilaterian
(D) All of them have digestive system
Both radial and bilateral symmetry is found in the phylum____________?
(A) Protozoa
(B) Porifera
(C) Echinodermata
(D) None of these
The radial symmetry is found in the animals of___________?
(A) Protozoa
(B) Porifera
(C) Cnidaria
(D) All of these
All of the following are coelomates except:____________?
(A) Deuterosomes
(B) Proterosomes
(C) Hemichordates
(D) Aschelminthes
Extremely long molecule of DNA that is tightly folded to fit inside the cell component is called_____________?
(A) Nucleus
(B) Chromosome
(C) Chromatid
(D) Chromatin body