During the bending of the arm, the biceps muscles
contracts and the triceps muscles relaxes
relaxes and the triceps muscles contracts
and the triceps muscles contract
and the triceps muscles relax
Correct answer is A
No explanation has been provided for this answer.
During respiration, air circulates round plant tissues via the
lenticels
stomata
guard cells
intercellular spaces
Correct answer is D
No explanation has been provided for this answer.
The end product of glycolysis in plants and animals is
pyruvic acid
citric acid
aspartic acid
malic acid
Correct answer is A
No explanation has been provided for this answer.
Which of following is NOT involved in the transport of substance in the body?
Lymph
Plasma
Leucocytes
Erythrocytes
Correct answer is C
No explanation has been provided for this answer.
Which of the following organs regulates the amount of amino acids and glucose in the body?
Kidney
Liver
pancreas
Spleen
Stomach
Correct answer is B
No explanation has been provided for this answer.