carbondioxide absorbed by leaves can diffuse to the roots
oxygen produced in the leaves can diffuse to the submerged parts
salts absorbed by roots can reach other parts of the plant
plant hormones are transported to various parts
manufactured food is translocated
Correct answer is B
No explanation has been provided for this answer.
Which of the following is an example of reproductive adaptation?
Succulent stems of a cactus plant
Changing colour of chameleon
Possession of spines by desert plants
Neck colouration in Agama lizard
Leaf-shedding in trees
Correct answer is D
No explanation has been provided for this answer.
Charles Darwin
Jean Lamarck
Gregor Mendel
Wallace
Louis Pasteur
Correct answer is B
No explanation has been provided for this answer.
Which of the following is not true about a bacterial colony growing on an agar plate?
They are visible without the aid of the microscope
Bacterial cells found in one colony often belong to one species
Different colonies have different colours
Only one species of bacterial colony can grow on a culture at any time
Colonies growing on an agar plate under the same conditions must belong to one species
Correct answer is C
No explanation has been provided for this answer.
The scientist who discovered the honey-comb structure of the cell was
Robert Hooke
Felix Dujardin
Mathias Schleiden
Theodore Schwann
Louis Pasteur
Correct answer is A
No explanation has been provided for this answer.