Anil Ahlawat Solutions for Chapter: Diversity in Living Organisms, Exercise 1: EXERCISES

Match column I with column II and select the correct option from the given codes.

Which of the following statements is correct about dicotyledons?
 

Riddhi drew a classification chart as shown.

Now, select the option that correctly identifies the characters $X, Y, P$ or $Q$.

Select the correct match out of the following.

Animal $X$ is cold-blooded, has scales and breathe through lungs. It has four-chambered heart. It lays eggs with tough covering, well adapted to dry land conditions. Which of the following animals is being referred to as animal $X$ in the given passage?

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 $P, Q, R, S, T$ and $U$.

Read the given passage.
Pteridophytes are the first plants with $X$ tissue but they lack $Y$ and $Z$ in this tissue system. The dominant plant body is $P$ which bears sporangia that can be either $Q$ or $R$. Select the option that correctly identifies any three of these variables.