Which of the following is common to a dicotyledonous stem and monocotyledonous root?
Medullary rays
Central pith
Wide cortex
Narrow cortex
Pericycle fibres
Correct answer is B
No explanation has been provided for this answer.
A group of similar cells performing the same function is
an organ
a system
a tissue
an organelle
an enzymes
Correct answer is C
No explanation has been provided for this answer.
In an angiosperm leaf, the xylem is
beside the phloem
surrounded by trhe phloem
above the phloem
around the phloem
in separate bundles from the phloem
Correct answer is E
No explanation has been provided for this answer.
root hairs
rootlets
hypae
rhizoids
thalli
Correct answer is D
No explanation has been provided for this answer.
At what stage in the life history of a toad is its mode of breathing similar to that of fish?
Tadpole stage
External gill stage
Adult stage
Internal gill stage
Larval stage
Correct answer is A
No explanation has been provided for this answer.