Structure Organisation in Animal Questions

In frog (Rana tigrina), which of the following correctly explains the mechanism of respiration during hibernation?

Which structure in frog prevents the backflow of blood from ventricle to atria during ventricular contraction?

Which of the following tissues exerts the greatest control over the body’s responsiveness to changing conditions?

Assertion (A): Chitinous exoskeleton of arthropods that is responsible for their evolutionary success is made up of lipoglycans. Reason (R): Building blocks of chitin are chemically modified amino sugars (N-acetyl glucosamine).

Which of the following is not correctly matched?

Given below is a diagrammatic representation of female reproductive system of frog labelled A, B, C and D:Find out incorrect one :-

Assertion : Gap junctions help in rapid transfer of ions, small molecules and sometimes big molecules. Reason : Gap junctions facilitate the cells to communicate with each other by connecting the cytoplasm of adjoining cells.

The terga, sterna and pleura of cockroach body are joined by

(A) Cockroach are nocturnal omnivores that live in damp places throughout the world. (B) They become residents of human homes and thus are serious pests and vectors of several diseases. (C) Many species of cockroach are wild and are economic importan

Given below is the diagram of reproductive system of an animal labelled by (i), (ii), (iii) and (iv)identify the animal with correct labelling of (i) to (iv)

Ciliated columnar epithelium is found in :-

Statement-I : Myofibrils is the structural unit of skeletal muscle. Statement-II : Smooth muscle help in transportation of food through digestive tract and gametes through genital tract.

Which type of respiration is present in frog during swimming ?

Identify A, B, C, D and E in a given figure related with mouth parts of the cockroach :

Assertion : Visceral muscles have a striped appearance under the microscope and hence are called striated muscles. Reason : As their activities are under the voluntary control of the nervous system, they are known as voluntary muscles too.

Read the following statements carefully about cockroach-Statement-I : In male cockroach, a characteristic mushroom shaped gland is present in the 6th-7th abdominal segments, which functions as an accessory reproductive gland.Statement-II: Blood from

Statement I : Exocrine glands secrete mucus, earwax, oil, milk, digestive enzymes and other cell products. Statement II: Gap junctions facilitate the cells to communicate with each other by connecting cytoplasm of adjoining cells.

Choose the incorrect statement regarding the human skeletal system:

Which of the following statements is correct regarding the morphology of a cockroach?

Match List-I with List-II w.r.t frog. Choose the correct answer from the options given below:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R: Assertion A: The development of Periplaneta americana is paurometabolous. Reason R: The nymphal stage grows by moulting about 13 times to reach the

Which of the following is correct regarding the specialized connective tissue "Bone"?

Which of the following structures in a frog receives deoxygenated blood from the body before it enters the Right Atrium?

In the diagram of a frog (labels A to D), one region in males undergoes a functional structural modification Which is not present in female frogs.Which of the following correctly identifies this dimorphism?

Label A, B, C, D & E correctly

Given below is the diagrammatic sketch of a type of connective tissue. Identify the parts A, B, C & D.

Analyze the following figure and select the correct statement.

Which part of the cockroach brain sends nerves to the antennae?

In Cockroach, the blood (hemolymph) is composed of:

The functional unit of excretion in frogs is:

Titillator and Pseudopenis in male cockroaches are parts of:

The endocrine gland present in frogs that helps in the process of metamorphosis is:

The larva of a frog is called a Tadpole. It respires through:

In Cockroach, the secretion of digestive juices occurs in the:

During aestivation and hibernation, a frog respires through:

The number of spiracles present in a cockroach is:

In the digestive system of a frog, the 'Vasa efferentia' are associated with:

The mouth of the Cockroach is directed downwards, a condition known as:

Frogs are 'Poikilotherms', which means:

The type of vision found in cockroaches is:

In Cockroaches, the spermatophores are stored in which part of the male reproductive system?

The triangular structure that joins the right atrium of a frog's heart is called:

In the frog, the "Bidder's canal" is present in:

In Cockroaches, the visual units of the compound eyes are called:

The thin-walled, large, translucent, and highly vascularized structures in a frog's heart that receive blood are:

Mushroom-shaped glands are found in the reproductive system of:

Identify the respiratory process in frogs where the mouth remains permanently closed while the nostrils remain open?

The heart of a Cockroach consists of an elongated muscular tube lying along the mid-dorsal line. It has how many funnel-shaped chambers?

Which of the following is true regarding the skin of a frog?

In Cockroach, the exchange of gases occurs at the: