What are the six functions of lipids?
What animal has 32 brains?
Animals without a backbone are called………………
What are the types of neuroglia?
(i) Four pairs of gills covered by an operculum on each side.
(ii) Skin is covered with cycloid/ctenoid scales.
(iii) Air bladder is present which regulates buoyancy.
(iv) Mostly oviparous and development is direct.
- All of these
- Sodium carbonate
- Calcium carbonate
- Calcium bicarbonate
- Sodium bicarbonate
What are sponges ( diploblastic or triploblastic)?
What is meant by pleomorphic ?
I. Cnidocytes are present on the tentacles and on the body
II. They are diploblastic and have cellular level of organisation
III. Polyp forms are free-swimming
IV. They exhibit metagenesis
V. Polyps produce medusae sexually and medusae form polyps asexually
- II and IV only
- III and V only
- II, III and V only
- I, II and III only
|Column I||Column II|
|A. Choanocytes||I. Platyhelminthes|
|B. Cnidoblasts||II. Ctenophora|
|C. Flame cells||III. Porifera|
|D. Comb plates||IV. Coelenterata|
- A-II, B-I, C-IV, D-III
- A-I, B-II, C-III, D-IV
- A-III, B-IV, C-I, D-II
- A-II, B-IV, C-I, D-III
Miracidium is the larval stage of
Nematocyst are found in?
|Column I||Column II|
- A-iv, B-iii, C-ii, D-i
- A-iv, B-ii, C-iii, D-i
- A-iii, B-ii, C-i, D-iv
- A-ii, B-iii, C-i, D-iv
Name an entity that shows true regeneration?
What is meant by mucilage?
- 2n and 2n
- n and 2n
- n and n
- 2n and n
- mouth and anus, respectively
- mouth and body surface, respectively
- anus and body wall, respectively
- mouth and tentacles, respectively
Nereis is an aquatic annelid. Its parapodia help it_________
Are humans asymmetrical?
- soil, alveoli and lung
- soil, lung and intestine
- soil, lung and liver
- liver, soil and stomach
Given below are types of cells present in some animals. Which of the following cells can differentiate to perform different functions?
(b) interstitial cells
(c) gastrodermal cells
The eggs of Ascaris are called mammillated eggs. Justify?
- flame cells
- being hermaphrodite
What is the difference between a medusa and polyp?
Read the following statements concerning the villi of the small intestine.
(i) They have very thin walls.
(ii) They have a network of thin and small blood vessels close to the surface.
(iii) They have small pores through which food can easily pass.
(iv) They are finger-like projections.
Identify those statements which enable the villi to absorb digested food.
(i), (ii) and (iv)
(ii), (iii) and (iv)
iii) and (iv)
(i) and (iv)
What is the anatomy of a frog?
- Porifera and Coelenterata is extracellular and intracellular, respectively
- Porifera and Coelenterata is both intracellular and extracellular
- Porifera and Coelenterata is intracellular and extracellular, respectively
- Porifera is intracellular and in Coelenterata, it is both intra and extracellular
- Body wall and body wall
- Mouth and mouth
- Mouth and body wall
- Mouth and tentacles