Diatoms belong to___________?
Diatoms belong to___________?
A. Chrysophyta
B. Bacillariophyceae
C. Xanthophyceae
D. Both A. and B.
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The pressure generated when water enters & inflates plant cells is called ___________ potential?
The pressure generated when water enters & inflates plant cells is called ___________ potential?
A. Water
B. Osmotic
C. Pressure
D. SoluteCo-ordination in man is brought about by___________?
Co-ordination in man is brought about by___________?
A. Nervous system
B. Endocrine system
C. Both of these
D. none of these.What is the percentage of water present in our brain?
What is the percentage of water present in our brain?A. 85%
B. 95%
C. 97%
D. 73%According to H.H. Mitchell, Journal of Biological Chemistry 158, the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.
Which of the following structure in plant’s body is called excretophores?
Which of the following structure in plant’s body is called excretophores?
A. Stem
B. Leaves
C. Flowers
D. RootsThe molecules of living matter that provide building blocks are mostly based on:
The molecules of living matter that provide building blocks are mostly based on:
A. Carbon
B. Nitrogen
C. Hydrogen
D. AmmoniaThe bristles on the body of the cockroach arise from__________?
The bristles on the body of the cockroach arise from__________?
A. Epidermis
B. Trichogen cell
C. Basement membrane
D. Malpighian cell