11th Standard Syllabus & Materials

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11th Standard English Medium Biology (Zoology) Subject Organ and Organ Systems in Animals Creative 3 Mark Questions with Solution Part - II

Published on: 26/06/2021

QB365 provides detailed and simple solution for every Creative Questions in class 11 Biology Subject. It will helps to get more idea about question pattern in every Creative questions with solution.

Download Tamil Nadu 11th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.

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Std: 11th Standard - Biology

chapter: - Creative Questions

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Questions:

Generic 2

2 x 2 = 4

Name the segments of leg of cockroach

What is called mandibulate or orthopterus type of mouth parts?

Generic 3

3 x 3 = 9

Write a note on the economic importance of frog.

Differentiate between male and female frog

Identify the following.

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Answers Key:

Generic 2

2 x 2 = 4

(a) Coxa (Proximal & large)
(b) Trochanter (small triangular joint)
(c) Femur (long and broad)
(d) Tibia (long and thick)
(e) Tarsus (distal with 5 movable joints or podomeres or tarsomeres)

(i) The appendages form mouth parts, which are of biting and chewing type. This is called mandibulate or orthopterus type.
(ii) So cockroach belong to mandibulata
(iii) This type of mouth part is called as the fundamental type as in human beings.

Generic 3

3 x 3 = 9

1. Frog is an important animal in the food chain. It helps to maintain our ecosystem. So 'frogs should be protected'.
2. Frogs are beneficial to man, since they feed on insects and helps in reducing insect pest population.
3. Frogs are used in traditional medicine for controlling blood pressure and for its anti-aging properties.

S.No	Male frog	Female Frog
1	The male frog has a pair of vocal sacs.	vocal sacs are absent.
2	Nuptial pad is present on the ventral side of the first digit of each forelimb.	Nuptial pad is absent.