Structural organisation in animals practice · Mixed difficulty

In which of the following segments of earthworm, septal nephridia is present?

Read the following statement carefully and choose the correct answer.

Statement I: Neuron is microscopic structure composed of three major part namely cell body, dendrites and axon.
Statement II: Dendrites transmit impulse toward the cell body.

Read the following statement about animal tissue. Identify the true and false.
Ones and select the correct option.
I) Adhering junctions along with cementing cells together facilitate the cells to communicate with
each other by connecting the plasma membranes of adjoining cells
II) Compound epithelium covers the moist surface of the buccal cavity, pharynx and lining of ducts
of salivary glands
III) The striated muscle fibre is a thin elongated with point ends and multiple nuclei
IV) Cartilage is present in the tip of the nose and between the bodies of adjacent vertebrate

Which of the following statement is incorrect in relation to frog?
I. Development of frog is indirect
II. Frog feeds on small insect, tadpole and smaller frogs
III. Their croaking in the call for mating
IV. They breeds in any season

Efferent salivary ducts in Periplaneta open into

Which of the following nephridia does not found in earthworm?

Which of the following pair is correctly matched

Zonula adherens is another name for:

The dorsal plate of skeleton found on the abdomen of cockroach is called

Which one of these doesn't fall in the same group as the other three?

Which is common between earthworm, leech and centipede?

The entire body of cockroach is covered by

Which of the following substances, if introduced into the blood
stream, would cause coagulation of blood at the site of its
introduction?

Fibres and cells are compactly packed in the dense connective tissues. Orientation of which component is responsible for considering them dense regular in tendons?

The most widely distributed tissue that forms packing in all organ is

Which of the following is not a function of epithelium?

Smooth muscle fibres differ from skeletal muscle fibres as they

Cardiac muscles are

Follow the features:

a) Fibres and fibroblasts are compactly packed

b) It is mesodermal in origin

c) Many fibres are oriented differently.

Where do you find the connective tissue with the above features?

Read the following statements carefully and select the incorrect among them.

a. Cardiac muscle fibres are branched and voluntary

b. Smooth muscles are unstriated and cylindrical

c. Skeletal muscles are cylindrical, multinucleated and involuntary

d. Skeletal muscles are smooth muscle and voluntary in nature

Choose the wrong options.

Dense irregular connective tissue is found in

Arrange the following nephridia in increasing order of their segmental location starting from anterior end if A = Septal, B = Integumentary, C= Pharyngeal.q

Which of the following muscle fibres do not show striation and taper at both ends?

Animal tissues are categorised into four basic types on the basis of

Difference between bone and cartilage is

Which of the following statement(s) is/are correct about nervous system of cockroach?
(i) It consists of a series of fused segmentally arranged ganglia joined by paired longitudinal connectives on the ventral side.
(ii) There are six ganglia lie in the thorax, and three in the abdomen.
(iii) The sense organs are antennae, eyes, maxillary pulps, labial pulps and anal cerci etc.
(iv) Each eye consists of about 5000 hexagonal ommatidia.

Study the following statements

(A) Compound epithelium forms the lining of the larger pancreatic ducts as stratified cuboidal epithelium

(B) Cartilage is a vascular tissue surrounded by fibrous connective tissue sheath called perichondrium

(C) Gap junctions in cardiac muscles permit electrical impulses to be conducted rapidly

(D) Mylienated nerve fibres are found in grey matter of the central nervous system Among the above, identify incorrect statements

How many hearts are found in earthworm?

In Pheretima, the red coloured round bodies in 4th, 5th and 6th segment above the alimentary canal are believed to be involved in

Which one of the following epithelial provide protection against chemical and mechanical stress?