Welcome to the NCERT Solutions for Class 11 Biology - Chapter Structural Organisation in Animals. This page offers a step-by-step solution to the specific question from Exercise 1, Question 1: . With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.
(i) The common name of Periplaneta americana is the American cockroach.
(ii) Four pairs of spermathecae are present between sixth and the ninth segments. They help in receiving and storing the spermatozoa during copulation.
(iii) In a cockroach, the pair of ovaries is located between 12th and 13th abdominal segments.
(iv) In both sexes, the abdomen of a cockroach consists of ten segments.
(v) Malphigian tubules are excretory organs of cockroaches. They form a part of the alimentary canal.
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
Stay updated with our latest educational content and study tips
Government jobs continue to be one of the most popular employment options in India because of their job security, regular salary, pension benefits, and promotion prospects. However, one of the most frequent doubts of aspirants is age eligibility. Countless candidates are discouraged from applying for Government positions – or even from preparing for them – … Read more
Read MoreAfter preparation for NEET and JEE, students inclined towards studying under state education boards find themselves a step behind the CBSE students. The syllabus, question pattern and level of idea of these national entrance exams varies widely from most state board syllabus. But with the correct approach, students taking the state board can hold their … Read more
Read MoreInterest is one of the most significant ideas in maths and financial calculations. It is very common in banking, loan applications, investments, saving account and competitive exams. Simple Interest and Compound Interest make it easier to find out how much more is earned and/or paid on a principal during the period of time. These Interest … Read more
Read MoreIn 2026, students, professionals, and job seekers must have a high level of spoken English. Spoken English is a beginner level course to enhance learners’ communication skills in English, their pronunciation, vocabulary, grammar structure and confidence in speaking English fluently. Today, the emphasis of spoken English courses is placed on actual conversations, everyday speech practice … Read more
Read MoreWelcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 1: Answer in one word or one line. (i) Give the common name of Periplaneta americana. (ii) How many spe....
Comments
WONDERFUL
Ans 3 is wrong
who has written the answer iii. doesnt he even knows that cockroaches have total 10 segments. the answer iii should be bet 2nd - 6th segment
Nice