A normal metaphase chromosome with a midial centromere is ________?
A. Metacentric
B. Sub-metacentric
C. Acrocentric
D. Telocentric
A. Metacentric
B. Sub-metacentric
C. Acrocentric
D. Telocentric
Foliose lichen are_____________?
A. Stem like
B. Branching
C. Leaf like
D. Crust like
Which of the following is a sentimentally arranged excretory system?
A. Protonephridium
B. Metanephridium
C. Malpighian tubules
D. Nephrons
In an annelids, the contraction of circular muscle results in___________?
A. Lengthening of the body.
B. Shortening of the body.
C. Widening of body
D. Thinning of body
A. Strength
B. Flexibility
C. Normal physical endurance
D. Agility
Antheridiophore and archegoniophore are found in_____________?
A. Marchantia
B. Funaria
C. Both of these
D. None of these
Aerating openings formed in the bark through which exchange of gases takes place and water is lost in the form of vapours are___________?
A. Hydathods
B. Stomata
C. Lenticels
D. None of these