What is the significance of aerating tube and feeding funnel in this set-up?

Carefully observe the followig figurue What is the significance of aerating tube and feeding funnel in this setup?

Carefully observe the following figure: What is the significance of aerating tube and feeding funnel in this setup?

Carefully observed the following figure (a) Name the technique shown in the figure and the scientist who demonstrated this technique for the first time. (b) Name atleast three plants for which this technique can be employed for their commercial production. (c) What is the significance of aerating tube and feeding funnel in this setup ?

Carefully observed the following figure (a) Name the technique shown in the figure and the scientist who demonstrated this technique for the first time. (b) Name atleast three plants for which this technique can be employed for their commercial production. (c) What is the significance of aerating tube and feeding funnel in this setup ?

What is the significance of tube feet in echinoderms?

Give the significance of the fallopian tube.

Give significance of test tube baby technique.

What is the function of aeration tank in sewage treatment?