HSC Science इयत्ता ११ - Tamil Nadu Board of Secondary Education Question Bank Solutions

Nephridia of Earthworms are performing the same functions as ______.

Metameric segmentation is the main feature of ______.

The respiratory pigment in cockroach is ______.

Exoskeleton of which phylum consists of chitinous cuticle?

In which of the following phyla, the adult shows radial symmetry but the larva shows bilateral symmetry?

Which of the following is correctly matched?

Why are spongin and spicules important to a sponge?

Compare closed and opened circulatory system.

Why flatworms are called acoelomates?

Concept Mapping - Use the following terms to create a concept map that shows the major characteristic features of the phylum nematoda:

Round worms, pseudocoelomates, digestive tract, cuticle, parasite, sexual dimorphism

In which phyla is the larva trochopore found?

Which of the chordate characteristics do tunicates retain as adults?

Could the number of eggs or young ones produced by an oviparous and viviparous female be equal? Why?

What type of fibres are found in connective tissue matrix?

Non-shivering thermogenesis in neonates produces heat through ______.

Differentiate white adipose tissue from brown adipose tissue.

Why blood is considered as a typical connective tissue?

Differentiate between elastic fibres and elastic connective tissue.

Write the classification of connective tissue and their functions.

Buccopharyngeal respiration in frog ______.