SSLC (English Medium) Class 9 - Tamil Nadu Board of Secondary Education Question Bank Solutions

Tissue organization can be seen in phylum Porifera.

Name the locomotory organs seen in phylum protozoa.

It conducts food from pharynx to stomach by peristalsis.

Seafood is a source of ______.

Analogy:

______: Anaemia
Iodine: ______

Name the major minerals required by the human body.

Give two examples of trace elements required by the body.

______ are the constituents of teeth, bones, tissues, blood, muscle, and nerve cells.

______ is declared as Global Iodine Deficiency Day.

The interval between infection and the first appearance of the disease is called the ______ period.

______ is the Father of Bacteriology.

An infection develops when these pathogens enter the human body.

Assertion: Cancer is a non-infectious disease.
Reason: Cancer is caused by external factors like pathogens invading the body.

Assertion: An infection develops when pathogens enter the human body.
Reason: Pathogen enters the human body through contaminated air, water, food, soil, physical contact, etc.

What is the incubation period?

Aquaponics is a technique of growing plants with their root supplied with moisture present in the air.

Explain briefly about Aquaponics.

Root caps are a characteristic adaptation of ______.

The presence of ______ in leaves traps the moisture and lessens water loss inMesophytes.

The function of stomata in leaves of mesophytes is to prevent ______.