STD 11 - 4. Animal kingdom — NEET STD 11 Science — Question

Cells of this tissue are living and show angular wall thickening. They also provide mechanical suport. The tissue is

Example of convergent evolution.

Which of the following statements about muscle is true ?
(i) Cardiac muscle tissue is a contractile tissue present only in the heart.
(ii) Cell junctions fuse the plasma membranes of cardiac muscle cells and make them stick together.
(iii) Intercalated discs is a communication junctions of skeletal muscles.
(iv) Communication junctions of skeletal muscles allow the cells to contract as a unit.
(v) Cardiac muscle is an involuntary muscle.

White matter is composed of

It is an antibiotic

If a haemophilic man marries a woman carrier (heterozygous) for haemophilia, what would be the possibility that their daughter would be haemophilic

The Nile perch introduced into lake victoria in east Africa led eventually to the extinction of an ecologically unique assemblage of more than 200 species of cichlid fish in the lake.
The above given sentence explains :

Haemozoin is a

Ear wax secreting cells have which type of epithelium?

Assertion : Sponges have body organization of "cellular level".
Reason : There is some physiological division of labour.