Which of the following statements about Spongilla, leech, dolphin and penguin is correct?
Important Questions on Diversity in Living Organisms
Match column I with column II and select the correct option from the given codes.
| Column I | Column II | ||
| (a) | Pore bearing animals | (i) | Arthropoda |
| (b) | Cnidoblasts | (ii) | Coelenterata |
| (c) | Metameric segmentation | (iii) | Porifera |
| (d) | Jointed legs | (iv) | Echinodemata |
| (e) | Soft bodied animals | (v) | Mollusca |
| (f) | Spiny skinned animals | (vi) | Annelida |
Riddhi drew a classification chart as shown.
Now, select the option that correctly identifies the characters or .
Select the correct match out of the following.
A list of animals (i-viii) is given. Classify them as acoelomates, coelomates and pseudocoelomates and select the correct option.
(i) Adamsia
(ii) Wuchereria
(iii) Nereis
(iv) Earthworm
(v) Planaria
(vi) Ascaris
(vii) Liver fluke
(viii) Scorpion
Refer to the following dichotomous key and answer the following questions.
(I) (a) Cellular level body organisation is present. - Go to IV
(b) Tissue/ organ level of body organisation is present. - Go to II
(II) (a) Radial symmetry is present. - Go to III (a)
(b) Bilateral symmetry is present. - Go to III (b)
(III) (a) It is acoelomate. - Go to V
(b) It is a true coelomate. Go to VI
(IV) (a) It is found in deep sea waters and is a costly wedding gift in Japan. - P
(b) It is commonly known as bath sponge. - Q
(V) (a) It is commonly known as the sea anemone. R
(b) It is commonly known as sea fur. - S
(IV) (a) It is segmented and sangivorous. - T
(b) It bears jointed feet and chitinous exoskeleton. - U
Identify organisms and .
Pteridophytes are the first plants with tissue but they lack and in this tissue system. The dominant plant body is which bears sporangia that can be either or . Select the option that correctly identifies any three of these variables.
