201. Extremely used metal is?
A. Iron
B. Cesium
C. Lead
D. Silver
202. The density of O2 gas at 20 Degree Centigrade is?
A. 1.4 gdm-3
B. 1.5 gcm-3
C. 1.8 gdm-3
D. 1.0 gdm-3
203. The estrogenic hormones are secreted by:
A. An anterior lobe of the pituitary
B. The posterior love the pituitary
C. The follicle
D. The Corpus luteum
204. _ is a condition in which the number of cells is constantly both for the entire animal and for each given organ in all the animals of that species:
A. Protandry
B. Eutely
C. Syngammy
D. None of the above
205. Brachioradialis is caused by the uplift of:
A. Ulna
B. Radius
C. Both A and B
D. Humerus
206. Indirect flight muscles of insects are frequently called as:
A. Dorsoventral muscles
B. Basalar muscles
C. Longitudinal muscles
D. Fibrillar flight muscles
207. Compound eyes of an insect consist of a few to 28,000 receptors called as:
A. Maconium
B. Pentastomida
C. Ommatidia
D. None of the above
208. Internally, tube feet usually terminate in a bulblike muscular _.
A. Polian vessicle
B. Madreporite
C. Ampulla
D. Tiedmann bodies
209. In filter feeders like paddlefish and whale sharks long gill processes called __ trap plankton while the fish is swimming through the water with its mouth open:
A. Gill Book
B. Lamellea
C. Gill rackers
D. None of the above
210. All organisms produce weak electrical fields from the activities of:
A. Nerve
B. Muscles
C. Brain
D. Both A and B
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