In frog, the vertebra with an anterior convex surface (i.e., double convexties) is
atlas
urostyle
8th vertebra
9th vertebra
The vital capacity of lungs is equal to
4000 ml
5000 ml
6000 ml
7000 ml
B.
5000 ml
The vital capacity is the maximum amount of air that can be expelled from lungs by forced exhalation after a forced inhalation. It is equal to the sum of tidal volume (TV), inspiratory reserve volume (IRV) and expiratory reserve volume (ERV).
VC= TV+ IRV+ ERV
= 500 + 3000 + 1100
=4600 ml
The first phylogenetic system of plant classification was proposed by
Engler
Engler and Prantl
Eichler
Wetlstein