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751.

The most common Indian toad isA. Bufo melanostictusB. Rana tigrinaC. AlytesD. Heloderma

Answer» Correct Answer - A
752.

Tick mark the wrong match (in earthworm).A. Female genital aperture-Midventral line of 14th segmentB. A pair of male genital apertures- ventrolateral sides of 18th segmentC. Genital papillae- ventral surface of 17th & 19th segmentsD. Clitellum or cingulum-9th to 14th segment

Answer» Correct Answer - D
Clitellum or cingulum-9th to 14th segment
753.

Mark the false statementA. Frog is a ureotelic animalB. There are ten pairs of cranial nerves arising from brainC. Forebrain includes cerebellum and medulla oblangataD. Forebrain includes cerebellum and medulla oblongata

Answer» Correct Answer - C
Forebrain includes cerebellum and medulla oblangata
754.

What are the parts of a neuron?

Answer» Cyton, dendrites axon
755.

Using appropriate examples , differentiate between false and true body segmention .

Answer» Segment is the serial repetition of simlar body parts along with the length of an animal the body of animals can be truly segmented or pseudo/false segmented .
True segmentation is found in annelids ,aethropods and some chrodates , in this there is a linear reprtion of body parts and each repeated unit is called somnite (metamere)
in earthworms the successive somites are essentially similar but they are dissimilar in different body regions of a crayfish or insect, Metamerism is conspicous both are dissiomilar in different body regions of a cryfish or insect ,Metamerism is conspicuous both externally and internally in annelids,
Pseudosegmentation is seen when body is divided into number of pseudosegments which are independent of each other Each segment is able to perform all the vital function of body grows by the addition of new segments from the anterior end e.g tapeworm.
756.

What is the special feature of a neuron?

Answer» Neurons are excitable cells which transmit nerve impulse
757.

Read the following statement (P - T) and select the option that correctly fills (i) - (v) P. The male frog has a special organ on the throat called `ul("I")` Q. `ul("ii")` membrane is a part of ear and serves to receive sound waves Dermis of the frog contain sac-like `ul("iii")` glands S. Tongue of frog is `ul("iv")` T . `ul("v")` repiration takes place in lungs on land.A. (i) - vocal sac, (ii) - Plasma, (iii) - mucous, (iv) trilobed, (v) PulmonaryB. (i) - vocal sac, (ii) - Tympanic , (iii) - mucous, (iv) bilobed, (v) PulmonaryC. (i)-vocal sac, (ii) - Pleural, (iii) - mucous, (iv) unilobed, (v) PulmonaryD. (i) - voacl sac, (ii) - incus, (iii) - sweat, (iv) multilobed, (v) Pulmonary

Answer» Correct Answer - B
758.

Specipal venous cennection between liver and inside and between kidney and interestine is found in frog , what are they called ?

Answer» Special venous cenection between liver and liver and inside is called hepatic portal system and venus connection between the kidney and the lower parts the lower parts of the frong is called Renal portal system .
759.

give the locations of hepatic caeca in a cockroch , what is their function ?

Answer» Hepatic or gastric cascae are 6-8 narrow and hollow bind tubles called is present at the juction of foregut and midgut the hepatic caecae are similar to vertebreate liver . Secretes digestive juices and help in the digestion .
760.

The body of earthworm is dividied into similar semgnets calledA. peristomiumB. clitellumC. setaeD. metameres

Answer» Correct Answer - D
metameres
761.

stratfied epithelial cells have limited role in secretion , Justify their role in our skin .

Answer» Stratified epitheilium consists of epithelial cells in which the deepest layer is made up of colummer of cuboidal cells it is a type of compound epithelium and outer few layers ,a water proof protin called kerstion is present .
These layers of sead cells is called horny layer which is shed at intervals due to frictions hence layers has a limited role in secretion and absorption mechanical and chemical stresses.
762.

How does a gap junctions facilitate intercellular communication ?

Answer» gap junctions facilitate intercellular communication buy allopwing small signaling molecules to pass from cell to cell , these are fine hyrophilic channels between two adjacent animal cells that are formed with the help of two proteins cylinders called connexus .
Each connexus consists of six proteins subunits that surroud a hydrophilic channel pH and `Ca^(2+)` ion cencentration controls opening or classing of channels .
763.

The epithelial tissue present on the inner surface of bronchioles and fallopian tubes isA. SquamousB. CuboidalC. GlandularD. Ciliated

Answer» Correct Answer - D
764.

The epithelial tissue present on the inner surface of bronchioles and fallopian tubes isA. SquamousB. CuboidalC. GlandularD. Ciliatede

Answer» Correct Answer - D
765.

A: Intercellular material is minimum between the cells of epithelial tissue. R: Epithelial cells are not secretory in nature.A. If both assertion & reaction are true and the reason is the correct explanation of the assertion, then mark (1).B. If both assertion & Reaction are true but the reaction is not the correct explanation of the assertion, them mark (2).C. If assertion is not the correct explanation but reason is false, them mark (3).D. If both assertion and reason are false statements, them mark (4).

Answer» Correct Answer - C
766.

The packing cells around the neurons in neural tissue are calledA. Mast cellB. HistiocytesC. Neuroglial cellD. Fibroblast

Answer» Correct Answer - C
767.

In Earthworm mouth is situated onA. ProstomiumB. PeristomiumC. StomiumD. Protostomium

Answer» Correct Answer - B
768.

Segments of earthworm are calledA. MetamereB. SarcomereC. ProstomiumD. Podomeres

Answer» Correct Answer - A
769.

Both RBCs and WBCs are formed inA. CartilageB. ThyroidC. Bone marrowD. Plasma

Answer» Correct Answer - C
770.

Phagocytosis and pinocytosis are collectively termed asA. EndocytosisB. Suspension feedingC. OmnivoresD. Mucours trap

Answer» Correct Answer - A
771.

The respiratory rhythm centre is present in theA. cerebrumB. cerebellumC. hypothalamusD. medulla oblongata

Answer» Correct Answer - D
772.

Which one of the following human organs is often called the "graveyard" of RBCs?A. Gall bladderB. KidneyC. SpleenD. Liver

Answer» Correct Answer - C
773.

Metamorphosis in cockroach is regulated mainly byA. corpora cardiacaB. prothoracic glandsC. corpora allataD. brain

Answer» Correct Answer - B
774.

Identify the tissue shown in the diagram and match with its characteristics and its location A. Skeletal muscle, shows striations and closely attached with the bones of the limbs.B. Smooth muscles, show branching, found in the wall of the heartC. Cardiac muscles, unbranched muscles, found in the walls of the heartD. Striated muscles, tapering at both-ends, attached with the bones of the ribs.

Answer» Correct Answer - A
775.

Ootheca of cockroach has fertilized eggs, their number isA. 6B. 8C. 16D. 24

Answer» Correct Answer - C
776.

State the location of smooth muscle

Answer» The are found in the posterior part of oesophagus,stomach,intestine,lungs,urinary bladder etc
777.

Assertion : Eggs of cockroach are encased in capsules called oothecae Reason : Ootheca is a dark reddish to blackish brown capsule.A. If both assertion and reason are true and reason is the correct explanation of assertionB. If both assertion and reason are true but reason is not the correct explanation of assertionC. If assertion is true but reason is falseD. If both assertion and reason are false

Answer» Correct Answer - B
The fertilised eggs of cockroach are encased in capsules called oothecae. Ootheca is a dark reddish to blackish brown capsule, about 3/8' (8 mm) long. On an average, females produce 9-10 oothecae, each containing 14-16 eggs.
778.

Which connective tissue links skeletal muscle to bone ?

Answer» Correct Answer - Tendons
779.

Mention the shape of smooth muscle fibre

Answer» Smooth muscle fibres are elongated and spindle-shaped or fusiform
780.

In a skeletal muscle fibre, the nuclei lie areA. DiffusedB. CentrallyC. PeripherallyD. Absent

Answer» Correct Answer - C
781.

The H-zone in the skeletal muscle fibre is due toA. The central gap between myosin filaments in the A band.B. The central gap between actin filaments extending through myosin filaments in the A band.C. The extension of myosin filaments in the central portion of the A band.D. The absence of myofibrils in the central portion of A band.

Answer» Correct Answer - B
782.

What is basement membrane ?

Answer» It is a delicate non-celluler layer over which the basal surface of epithelial tissue lies
783.

The four figures (A, B, C and D) given below represent four different types of animal tissues. Which one of these is correctly identified in the given options along with its correct location and function ? A. `{:(""" Tissue","Location","Function",),("(1)(B),""""Glandular epithelium","Intestine ","Secretion",):}`B. `{:(""" Tissue","Location","Function",),("(2)(C),""""Collagen fibers","Cartilage","Attack skeletal muscles to bones",):}`C. `{:(""" Tissue","Location","Function",),("(3)(D),""""Smooth muscle tissue","Heart","Heart contraction",):}`D. `{:(""" Tissue","Location","Function",),("(4)(A),""""Columnar","Nephron","Secretion and absorption",):}`

Answer» Correct Answer - A
784.

List four types of animal tissues.

Answer» (1) Epithelial tissue
(2) Connective tissue
(3) Muscular tissue
(4) Neural tissue.
785.

Ciliated columnar epithelium called ependyma is present in the lining ofA. Fallopian tubesB. Ventricles of brainC. Nasal passageD. Bronchioles

Answer» Correct Answer - B
786.

The four sketches (A,B,C and D) given below represent four different types of animal tissues. Which one of these is correctly identified in the options given, along with its correct location and functions? .A. `{:(,"Tissue","Location","Function"),((B),"Glandular epithelium","Intestine","Secretion"):}`B. `{:(,"Tissue","Location","Function"),((C),"Collagen fibres","Cartilage","Attach skeletal muscles to bones"):}`C. `{:(,"Tissue","Location","Function"),((D),"Smooth muscle tissue","Heart","Heart contraction"):}`D. `{:(,"Tissue","Location","Function"),((A),"Columnar epitherium","Nephron","Secretion and absorption"):}`

Answer» Correct Answer - A
787.

State the role of ciliated columnar epithelium in the oviducts

Answer» Passage of ovum through the oviduct
788.

The cells lining the blood vessels belongs to the category of :A. Columnar epitheliumB. Connective tissueC. Smooth muscle tissueD. Squamous epithilium

Answer» Correct Answer - D
789.

The ciliated columnar epithelial cells in humans are known to occur inA. Fallopian tubes and urethraB. Eustachian tube and stomach liningC. Bronchioles and Fallopian tubesD. Bile duct and oesophagus

Answer» Correct Answer - C
790.

The ciliated columnar epithelial cells in humans are known to occur inA. Fallopian tubes and urethraB. Eustachain tube and stomach liningC. Bronchioles and fallopian tubesD. Bile duct and oesophagus

Answer» Correct Answer - C
791.

Choose the incorrect pair from the matches given below.A. Antennae - Sensory receptorsB. Metathoracic wings - FlyingC. Malpighian tubule - ExcretionD. Crop - Food grinding

Answer» Correct Answer - D
Crop is a sac-like structure in the digestive system of cockroach that is used for storing the food.
792.

Buccal cavity in earthwrom extends fromA. 1th to 3rd segmentB. 1st to 7th segmentC. 3rd to 5th segmentD. 5th to 7th segment

Answer» Correct Answer - A
1th to 3rd segment
793.

In earthworm the buccal cavity extends uptoA. 4th segmentB. 3rd segmentC. 8th segmentD. 9th segment.

Answer» Correct Answer - B
794.

The body cavity of cockroach is called :A. pseudocoelB. coelomC. hydrocoelD. haemocoel

Answer» Correct Answer - D
795.

Supportive connective tissue meansA. Tendon and ligamentB. Blood and lymphC. Adipose and areolar tissueD. Bone and caetilage

Answer» Correct Answer - D
796.

Pancreas isA. ExocrineB. EndocrineC. Both A and BD. None of the above.

Answer» Correct Answer - C
797.

How do the basophils help in body defence?A. Phagocytosis of pathogensB. Cell mediated and antibody immunityC. Inhibit allergic reactionD. Heparin secretion for preventing thrombosis.

Answer» Correct Answer - D
798.

What is the similarity between fly, mosquito and cockroachA. Thirteen-chambered heartB. Three pairs of legsC. Open excretory systemD. Housefly

Answer» Correct Answer - B
799.

Match the following and choose the correct answer `{:("A.","Hermaphrodite","(i)","Produces blood cells and haemoglobin"),("B.","Direct development","(ii)","Testis and ovary in the same animal"),("C.","Chemoreceptor","(iii)","Larval form absent"),("D.","Blood gland in earthworm","(iv)","Sense of chemical substances"):}`A. A-(ii),B-(iii),C-(iv),D-(i)B. A-(iii),B-(ii),C-(iv),D-(i)C. A-(i),B-(iii),C-(ii),D-(iv)D. A-(ii),B-(iv),C-(iii),D-(i)

Answer» Correct Answer - A
800.

Normal level of haemoglobin per 100 ml of blood in a woman isA. 18 gB. 14 gC. 12 gD. 10g

Answer» Correct Answer - B