Which of the following is NOT a type of exoskeleton?
Cartilage
Chitin
Hoot
Nail
Shell
Correct answer is A
No explanation has been provided for this answer.
The vitreous humour in the human eye assists in ...... of objects
contraction
conversion
reflection
refraction
retention
Correct answer is D
No explanation has been provided for this answer.
The medium of transportation in higher plants is
cell sap
cytoplasm fluid
phloem
water
xylem
Correct answer is A
No explanation has been provided for this answer.
Which of the following enzymes requires acidic medium to function?
Amylase
Erepsin
Maltose
Pepsin
Ptyalin
Correct answer is D
No explanation has been provided for this answer.
Which of the following is NOT a type of supporting tissue in plants?
Cambium
Collenchyma
Parenchyma
Sclerenchyma
Xylem
Correct answer is A
No explanation has been provided for this answer.