Absorption by Roots — Biology STD 10 — Question

Name the following:
Thoracolumber region of spinal cord form.

In what two ways is the yellow spot different from the blind spot?

Write a sentence of the following:
Sheath

Name the following:
The pressure with which the molecules of a substance diffuse.

The tea plants are never allowed to grow lengthwise. This is done by cutting their apical buds, a process known as pruning. In this way, tea plants get a dense growth and easy yield. Answer the following question :
Name one plant hormone which inhibits the said phenomenon.

Name the Following :
The process by which kidneys regulate the water content of the body.

What does WHO stand for?

State the Location: Polytene chromosome

State the Location: Medulla of Kidney

Define the following:
Sanitation