271. Outer surface of bones is covered by a dense layer of connective tissue, called as ___________ ?
A. Periosteum
B. Woven bone
C. Epithelium lining
D. Connective lining
272. Another name for liver is called ___________ ?
A. Hepar
B. Hepta
C. Heptum
D. Hilum
273. Joints between flat bones of skull are termed as ____________ ?
A. Suture
B. Sutural joints
C. Syndesmosis
D. Both A and B
274. Length of membranous urethra is about ___________ ?
A. 1 cm
B. 2 cm
C. 5 cm
D. 9 cm
275. Division of nucleus is termed as___________ ?
A. Karyokinesis
B. Cytokinesis
C. Anaphase
D. Meiosis
276. Membrane that separates ‘cytoplasm’ and ‘nucleus’ is called ___________ ?
A. Cell wall
B. Cell membrane
C. Boundary
D. Nuclear envelop
277. Which one of the following is referred as the species occupation?
A. Autecology
B. Niche
C. Ecosystem
D. Biome
278. The first ever vascular plants are_________?
A. Cooksonia
B. Selaginella
C. Adiantum
D. Dryopteris
279. Circular disc shaped structure with a round hole is ___________ ?
A. Iris
B. Pupil
C. Horoid coat
D. Ciliary body
280. The higher animals have special organs for exchange of gases as their skin is ___________ ?
A. Thin
B. Thick
C. Soft
D. Hard