SSLC (English Medium) इयत्ता ८ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Science

Based on shape, the bacteria are classified into _______ types.

Bacteria, which has a flagellum at one end is classified as _______.

Match the following.

Write the name of any nitrogen fixing bacteria.

Name the bacteria used in the production of vinegar.

Write the four types of bacteria, based on their shape.

Write a short note on bacteria and its structure.

State different types of tissues.

Why do underwater divers wear fin-like flippers on their feet?

______ refers to change in position of the part of an organism^,s body.

There are 12 pairs of ribs in human body.

________ are the chemical substances, secreted by endocrine glands.

Androgen production is regulated by ______

________ is secreted by the ovaries of female.

The hormones secreted by the gonads are controlled by ________.

Milk secretion during lactation is controlled by ________ hormone.

Explain the role of hormones in reproduction.

Explain the agricultural practices.

What is global warming?

Is it possible to find dinosaurs today? Why?