Liver produces bile which is stored in the gall bladder. Liver is the largest gland in the body.

Correct Option: A

Liver produces bile which is stored in the gall bladder. Liver is the largest gland in the body.

The lockjaw is a pathological condition of tetanus. Clostridium tetani bacteria are responsible for tetanus. Main symptoms of tetanus : spasms of muscles and convulsions, lockjaw.

Correct Option: D

The lockjaw is a pathological condition of tetanus. Clostridium tetani bacteria are responsible for tetanus. Main symptoms of tetanus : spasms of muscles and convulsions, lockjaw.

Heparin also known as un-fractionated heparin, a highly sulfated glycosaminoglycan, is widely used as an injectable anticoagulant, and has the highest negative charge density of any known biological molecule.

Correct Option: A

Heparin also known as un-fractionated heparin, a highly sulfated glycosaminoglycan, is widely used as an injectable anticoagulant, and has the highest negative charge density of any known biological molecule.

The open circulatory system is a system in which fluid in a cavity called the hemocoel bathes the organs directly with oxygen and nutrients and there is no distinction between blood and interstitial fluid; this combined fluid is called hemolymph or hemolymph. Arthropods and mollusks have an open circulatory system.

Correct Option: A

The open circulatory system is a system in which fluid in a cavity called the hemocoel bathes the organs directly with oxygen and nutrients and there is no distinction between blood and interstitial fluid; this combined fluid is called hemolymph or hemolymph. Arthropods and mollusks have an open circulatory system.

Cockroaches develop through a process called gradual metamorphosis. This process has three stages: egg, nymph, and adult.

Correct Option: B

Cockroaches develop through a process called gradual metamorphosis. This process has three stages: egg, nymph, and adult.