Structural Organisation in Animals
Trending Questions
Q.
On which segments of earthworms are testes present?
13 and 14
10 and 11
9 and 10
14 and 15
Q.
Define unicellular organisms.
Q. Why does a cockroach have mosaic vision?
- Presence of simple eyes
- Presence of antennae
- Presence of ommatidia
- All of the above
Q.
Raphides are excretory materials of-
Porifera
Plants
Cnidaria
All of these
Q.
Explain the division of labour at (a) organization level (b) cellular level.
Q. Bidder's canal in frog is present inside the
- testes
- kidney
- ovary
- lungs
Q. Which of the following option is incorrect with reference to frogs?
- Vascular system - closed type
- Heart - three chambered
- Excretion - uricotelic
- Cranial nerves - 10 pairs
Q. The skin of frog is
- thin and vascular
- permeable to water
- contains mucus glands
- all of the above
Q. Which of the following is present in Pheretima ?
- erythrocytes
- open circulatory system
- haemoglobin
- none of the above
Q. Which of the following statements are correct?
1. Frogs lack nictitating membrane.
2. Frogs have 3 chambered heart.
3. Frogs possess 2 portal systems: renal portal system & hepatic portal system.
1. Frogs lack nictitating membrane.
2. Frogs have 3 chambered heart.
3. Frogs possess 2 portal systems: renal portal system & hepatic portal system.
- Only 1 is correct
- Both 1 & 2 are correct
- Only 2 is correct
- Both 2 & 3 are correct
Q.
Bidders Canal Is Present In______.
Male Frog
Male Rabbit
Female Frog
Female Rabbit
Q.
Give two examples of unicellular organisms.
Q. In frogs, polysaccharides are broken down into disaccharides by an enzyme known as
- pepsin
- hydrochloric acid
- lipase
- amylase
Q. Which of the following is correct about the earthworm Pheretima?
- Fertilisation of eggs occurs inside the body
- The typhlosole greatly increases the effective absorption area of the digested food in the intestine
- The S- shaped setae embedded in the integument are the defensive weapons used against the enemies
- It has a long dorsal tubular heart
Q. The structure in earthworm which serves as a wedge to force open cracks in the soil is the
- peristomium
- setae
- clitellum
- prostomium
Q. The structure of the body in earthworms is maintained by
- coelomic fluid
- clitellum
- setae
- metameres
Q. Which of the following is part of the sympathetic nervous system in earthworms?
- Nerve ring
- Dorsal nerve cord
- Ventral nerve cord
- Nerve plexus
Q.
Mention any one significance of turgidity of cells.
Q. In which of the following organisms all the functions are performed by a single cell
- Protists
- Bacteria
- Virus
- All of the above
Q. Assertion: Frogs undergo aestivation & hibernation
Reason: Frogs take shelter in deep burrows to protect themselves from extreme heat & cold.
Reason: Frogs take shelter in deep burrows to protect themselves from extreme heat & cold.
- Both assertion & reason are correct and reason is the correct explanation of the assertion statement.
- Both assertion & reason are correct but reason is not the correct explanation of the assertion statement.
- Assertion is correct but reason is wrong.
- Both assertion and reason are incorrect statements
Q. Which of the following segments of an earthworm lack setae?
- first and last segments
- first segment and clitellum
- first segment
- first, clitellum and last segments
Q. Where does Pheretima derive its nourishment from?
- Soil insects such as ticks
- Soil organic matter such as decaying fallen leaves
- Plant roots like sugarcane roots
- Fresh fruits like cherries
Q. Frogs have a low RBC count because they are
- endotherms
- ectotherms
- homeotherms
- mesotherms
Q. The first body segment of earthworm is
- protostome
- peristomium
- prostomium
- none of the above
Q. During aestivation and hibernation, frogs respire through ______
- lungs
- skin
- buccal cavity
- all of the above
Q. Which of the following is not true in the case of the vascular system of earthworms?
- Blood glands are present in the 4th, 5th and 6th segments
- The blood cells contain haemoglobin
- The blood cells are phagocytic
- Blood is confined to the heart and blood vessels
Q. Which of the following option is the correct taxonomical position of Rana tigrina in the order of taxonomic hierarchy upto the category of order?
- Chordate, Craniata, Amphibia, Gnathostomata, Anura
- Chordata, Craniata, Gnathostomata, Amphibia, Anura
- Chordata, Amphibia, Gnathostomata, Craniata, tigrina
- Gnathostomata, Craniata, Chordata, Rana tigrina
Q. Which of the following is correctly matched in Pheretima?
- Clitellum - secretes cocoon
- Gizzard - absorbs digested food
- Setae - defence against predators
- Typhlosole - storage of extra nutrients
Q. A prominent dark band of glandular tissue called clitellum is present in the ________ segments of the earthworm.
- 15-16th
- 16-17th
- 14-16th
- 13-15th
Q. The table shows the functions of portal system in a frog. Choose the best option given below.
I.Portal System | II.Function |
A) Renal portal system | Collects blood from all parts of the body |
B) Renal portal system | Carries blood from hind limbs to kidneys |
C) Hepatic portal system | Carries blood from liver to alimentary canal |
- A is incorrect
- A and B are incorrect
- A and C are incorrect
- All are correct