Light microscopy allows microscopist to view dynamic processes in living cells because both live and dead specimens can be viewed. Electron microscopes cannot for the view of living specimens because they use electrons that are destructive to cell. On the other hand, light microscopes use visible light and magnifying lenses to examine specimens.
Answer : Using Opthalmic Sponges.
Explanation : Collecting tears with the trivial methods is often not possible as to avoid the tear reflex is a different problem. Tear collection with glass capillaries are the most widely used method for taking samples and is considered to be the best method for avoiding tear reflex.
To collect tears are from elderly people or small children's who had difficulties with glass capillaries; for them ophthalmic sponges was used.
This kind of opthalmic sponges proved to be well tolerated by the patient, especially in small children's, and also enabled standardization of the tear collection in terms of volume.
I think the process in which substances change into different substances is called transformation, but I am not sure whether this is correct or not
Answer:
a. Lower
b. Stimulates
In negative geotropism of shoots, auxin is redistributed to the lower side of the cell, where the amyloplasts have accumulated, where it stimulates cell elongation.
Explanation:
Geotropism can be defined as the direction the various parts of a plant grows toward due to the stimulus which in this case is the force of gravity. Geotropism in plants can be negative or positive.
Negative geotropism occurs when the shoots of a plant grows upwards against the force of gravity.
