Question

Four students P, Q, R and S were asked to do the labeling for the parts A, B, C, D and E of hydra shown in the figure alongside. They all submitted their answers as given below. Which of the four students done the labeling correctly? *
Captionless Image​

Answer 1

Explanation:

Out of the four students, R and S are correct as they indicate true pairs of analogous organs. Analogous organs are those which have same function but differ in embryonic origin. Wings of parrot and butterfly both are used for flying but those of parrot are modified feathers while that of butterfly are formed of thin membranous layers of chitin. Similarly wings of bat are made of thin layers of stretched skin but perform flying function. The other sets of pairs given by students P and Q are homologous organs as all have same structure but different way of locomotion.

Answer 2

Explanation:

Check below the important MCQs on Diversity in Living Organisms:

1. Fungus and algae both are placed under the same division “Thallophyta”.

What is the reason that both share the same group?

(a) Both are autotrophic

(b) Both are saprophytic

(c) Plant body in both is not differentiated into root, stem and leaves

(d) Both have false roots

Answer.(c) Plant body in both is not differentiated into root, stem and leaves

2. Choose the option that best describes the characteristics of the kingdom to which the mushroom belongs:

(a) Unicellular prokaryotic organisms

(b) Saprophytic, eukaryotic, multicellular organisms

(c) Unicellular eukaryotic organisms