The plants which produce embryo but lack vascular tissues and seeds are placed in_________?
A. bryophytes
B. pteridophytes
C. tracheophytes
D. all of these
A. bryophytes
B. pteridophytes
C. tracheophytes
D. all of these
A. Multifactorial
B. Pleiotropic
C. Polygenic
D. Epistatic
Chlorophylls are found embedded in the __________ membranes?
A. Stroma
B. Grana
C. Thylakoid
D. Intergrana
Locomotion in diatoms is carried out with the help of__________?
A. Valve
B. Raphe
C. Pseudopodium
D. Cilia or flagella
Example of bacteria requiring low concentration of oxygen is__________?
A. Campylobactor
B. spirocheta
C. E-coli
D. Pseudomonas
Which of the following statement about the head of a chlorophyll molecule is incorrect?
A. It is a porphyrin ring or tetrapyrrole ring structure
B. It is flat, square and light absorbing
C. Composed of carbon and nitrogen atoms with Magnesium as central metal ion, which is coordinated with nitrogen.
D. It is hydrophobic
Salivary glands present in front of ear are___________?
A. Sublingual
B. Submaxillary
C. Submandibular
D. Parotid