Unit - 1.1 Tissue — BIOLOGY STD 7 — Question

Find the odd one out. Give reasons:
salivary amylase, pepsin, trypsin, erepsin

Give reasons:
All teeth in the mouth are not alike.

Differentiate between
mosses and ferns

What are the two ways by which a person can get relief in case of kidney failure?

Name the three main parts of the human brain.

What is the source of energy for photosynthesis?

Take some boiled potatoes, french fries, baked ‘ potatoes and potato chips. Rub a small amount of each of these on a brown paper. Write the name of \ each item below the spot you rubbed. Wait for five minutes for the spot to dry. Hold the paper towards light and record your observation. Which type of potatoes contain fat ? If you are on a low fat diet, which type of potatoes would you eat ? Why?

Define the following:
connective tissue proper

What are voluntary and involuntary actions? Which part of the nervous system controls them?

Explain : Kidney Stone