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The root that originated from the base of the stem are :
Option: 1 Fibrous root
Option: 2 Primary root
Option: 3 Prop root  
Option: 4 Lateral root

Fibrous root originates from the base of the stem.

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Posted by

Ritika Jonwal

Cuboidal epithelium with brush border of microvilli is found in  
Option: 1 Lining of intestine
 
Option: 2 ducts of salivary glands
 
Option: 3 proximal convoluted tubule of the nephron
 
Option: 4 eustachian tube

Cuboidal epithelium with brush border of microvilli is found in the proximal convoluted tubule of the nephron.

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Ritika Jonwal

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Match the following column and select the correct option

(a) Column-1 (i) Column-2
(b) Organ of Corti (ii) Connect middle ear and pharynx
(c) Cochlea (iii)Coiled part of the labyrinth
(d) Eustachian tube (iii)Attached to the oval window
(e) Stapes (iv)Located on the basilar membrane


Option: 1

  (a) (b) (c) (d)
. (ii) (iii) (i) (iv)

 
Option: 2

  (a) (b) (c) (d)
2 (iii) (i) (iv) (ii)

 
Option: 3

  (a) (b) (c) (d)
3 (iv) (ii) (i) (iii)

 
Option: 4

  (a) (b) (c) (d)
4 (i) (ii) (iv) (iii)

 

The correct match is:

The organ of Corti - Located on the basilar membrane

Cochlea - Coiled part of the labyrinth

Eustachian tube - Connects middle ear and pharynx

Stapes - Attached to the oval window

Hence, the correct option is (c).

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Posted by

rishi.raj

What is special about tissue present in the heart?

Answer- The special tissues [resent in the heart are:


- The heart tissues are auto-excitatory in nature and therefore possess their own mechanism to initiate contraction.
- These muscles are striated and show a branched structure
- The muscles depict a continuous cycle of systole and diastole

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Posted by

infoexpert23

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

False body segmentation

True body segmentation
  1. Different segments of the bodywork independently

Different segments of the bodywork in coordination
  1. Different segments are independent of each other

Segments are interrelated and linked
  1. Example- tapeworm

Example- earthworm

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Posted by

infoexpert23

Write the appropriate type of tissues in column B to the function mentioned in column A.

COLUMN A

COLUMN B

a.    Protective covering

__________

b.    Linkage and supporting framework 

__________

c.    Secretion covering

__________

Answer-
a. Stratified epithelium
b. Connective tissues
c. Simple columnar epithelium

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infoexpert23

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Write the function in brief in column B, appropriate to the structure given in column A.

COLUMN A

COLUMN B
  1. Tympanum

__________
  1. Copulatory pad

__________
  1. Nictitating membrane

__________

 

 

a. Helps in catching the sound waves
b. Helps in holding the female body during the process of copulation
c. It helps in providing underwater vision

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infoexpert23

Frog is a poikilotherm, exhibits camouflage and undergoes aestivation and hibernation, how are all these beneficial to it?

Answer-

Frogs are poikilothermic organisms. This indicates that their body temperature depends on the surrounding environment. This
assists in conserving the energy which is usually spent on regulating the body temperatures of different organisms. In order to bypass
unfavourable climatic condition, frogs require an ability to hibernate.Thus, the ability to camouflage help in avoiding predators. This also helps in catching their preys.

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infoexpert23

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Mention the special features of the eye in a cockroach.

Answer- The special features of the eye of a cockroach are listed below:


- The cockroach eye is composed of multiple photoreceptor units.These units are called ommatidia.
- Every ommatidium constructs an image of the object seen.Therefore, all the ommatidia together form a mosaic of images of the object seen.
- These compound eyes have a large view angle and can help detect small activities by a single glance.
- However, the resolution of the images formed is not of good quality as compared to a simple eye.

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infoexpert23

 Complete the following statement-

a. In cockroach blood vessels open into spaces called_______
b. Malpighian tubules help in removal of _________
c. In cockroach grinding of food particles is performed by________
d. Hind gut of cockroach is differentiated into_______

Answer-
a. Gizzard
b. Nitrogenous waste
c. Haemocoel
d. Ileum, colon and rectum

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infoexpert23

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