Guard cells of stoma are ________ ?
(A) Irregular in shape
(B) Convex in shape
(C) Long and cylindrical in shape
(D) Kidney-shaped
Circular disc shaped structure with a round hole is ___________ ?
(A) Iris
(B) Pupil
(C) Horoid coat
(D) Ciliary body
The first ever vascular plants are_________?
(A) Cooksonia
(B) Selaginella
(C) Adiantum
(D) Dryopteris
Which one of the following is referred as the species occupation?
(A) Autecology
(B) Niche
(C) Ecosystem
(D) Biome
All chromosomes other than ‘sex’ chromosome are called __________ ?
(A) Autosomes
(B) Acentric chromosomes
(C) Metacentric Chromosomes
(D) Telocentric chromosomes
Membrane that separates ‘cytoplasm’ and ‘nucleus’ is called ___________ ?
(A) Cell wall
(B) Cell membrane
(C) Boundary
(D) Nuclear envelop
Division of nucleus is termed as___________ ?
(A) Karyokinesis
(B) Cytokinesis
(C) Anaphase
(D) Meiosis
Joints between flat bones of skull are termed as ____________ ?
(A) Suture
(B) Sutural joints
(C) Syndesmosis
(D) Both A and B