B.

hinge joint

In hinge joint, the convex surface of one bone fits into the concave surface of another bone. eg, knee elbow and interphalangeal joints.
Pivot joint, one bone is fixed and second articulated, eg, atlas and axial of skull rotate with axis vertebra.
Gliding joints primarily permit side-by-side and back and forth gliding movements, eg, intercarpal joints and intertarsal joints.
In ball and socket joint, a ball of one bone articulates in sockets of another bone, eg, head of the humerus and glenoid cavity of the pectoral girdle.

C.

Fucus

Fucus belongs to class-Phaeophyceae, in which reserve food is found in form of laminarin, mannitol and oil.
Chara belongs to class- Chlorophyceae, in which reserve food is found in form of starch and oil.
Porphyra and Grachillaria belong to class- Rhodophyceae, in which reserve food is found in form of floridean starch and Galactan- SO₄ polymers

C.

ciliated

Giliated columnar epithelium lines respiratory tract (lower end of bronchi) fallopian tubes, ventricles of brain (ependyma) central canal of spinal cord, etc. Cuboidal epithelium occurs in certain parts of nephrons of the kidneys.
Glandular epithelium are specialised for secretory activities eg, unicellular multicellular, exocrine, endocrine, heterocrine glands, etc.
Squamous epithelium forms lining of blood vessels, lymph vessel, heart, peritoneum, pleura, Bowman's capsule, etc,

C.

Fat and cellulose

In humans, starch is digested in the buccopharyngeal cavity. Cellulose is not digested in the humans because cellulose contains β -1, 4-linkages and vertebrates themselves do not possess any enzymes capable of hydrolyzing β-1, 4 - linkages. Protein is digested in stomach and fat in the small intestine.Thus in the given options, fat and cellulose reach totally undigested in the stomach of humans

C.

cockroach

Cockroach excretes uric acid as the chief nitrogenous excretory product.
Man excretes urea as the chief nitrogenous excretory product. 
Earth warm excretes 40%, urea, 20% ammonia and 40% amino acids.
Frog excretes urea as the chief nitrogenous product.