Electric Current and its Effects — Science STD 7 — Question

Fill in the blanks.

Arteries and veins are joined by a network of _______.

For a bulb to glow, it must be connected to a battery. Why?

When a blood vessel is cut, blood comes out immediately. After some time, a dark red clot is formed on the cut. Name the cell responsible for this.

What is an electric fuse?

Following statements describe the five steps in animal nutrition. Read each statement and give one word for each statement. Write the terms that describes each process. Taking food into the body.

If cells are placed side by side. Then, how are the terminals of the cells connected?

Why do different stars appear in the night sky over the course of a year?

Name the bacteria that can fix atmospheric nitrogen.

State the principle used in creating a mirror image.

Name the plant from which litmus is extracted.