Tiwari Academy Discussion

Asked: October 18, 2021In: Class 12 Biology

What are the basic characteristics of a modern land fill sites. List any three and mention the reasons for their use.

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Haldi Ram

Asked: October 18, 2021In: Class 12 Biology

Define transgenic animals. Explain in detail any four areas where they can be utilised.

Class XII Science Biology Solutions 12th Biology NCERT Syllabus Questions 12th Biology Science Session 2021-22 12th Biology Terminal Exam Based Extra Questions

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Charlie

Asked: October 18, 2021In: Class 12 Biology

Select the options that are true for both asexual and sexual reproduction from the options given below:

A few statements describing certain features of reproduction are given below: i. Gametic fusion takes place ii. Transfer of genetic material takes place iii. Reduction division takes place iv. Progeny have some resemblance with parents

Ratan Rai

Asked: October 18, 2021In: Class 12 Biology

Write a short note on electronic waste. List the various sources of e- wastes and the problems associated with the disposal of e-waste.

Class 12 Science Biology Important Questions Class 12th Biology Sample paper Questions 12th Biology NCERT Syllabus Questions Class 12 Science Biology Terminal Exams Solutions

Parul

Asked: October 15, 2021In: Class 12 Biology

Elaborate how invasion by an alien species reduces the species diversity of an area.

Class XII Science Biology Extra Questions Class 12th Biology Sample paper Questions 12th Biology Terminal Exam Based Extra Questions 12th Biology NCERT Syllabus Questions

Sushant Joshi

Asked: October 15, 2021In: Class 12 Biology

Describe critically the main ideas behind the biological control of pests and diseases.

Class XII Science Biology Extra Questions Class XII Science Biology Solutions 12th Biology NCERT Syllabus Questions 12th Biology Science Session 2021-22

Divya datt

Asked: October 15, 2021In: Class 12 Biology

Embryo sacs of some apomictic species appear normal but contain diploid cells. Suggest a suitable explanation for the condition.

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Vijay Raj

Asked: October 15, 2021In: Class 12 Biology

Although sexual reproduction is a long drawn, energy-intensive complex form of reproduction, many groups of organisms in Kingdom Animalia and Plantae prefer this mode of reproduction. Give atleast three reasons for this.

12th Biology Terminal Exam Based Extra Questions Class 12th Biology NCERT Based Questions Answers Class 12 Science Important Syllabus Questions Answers Class 12th Science Session 2021-2022

Somvati

Asked: October 15, 2021In: Class 12 Biology

How do scientists extrapolate the total number of species on Earth?

Class 12th Biology Sample paper Questions Class 12th Biology NCERT Based Questions Answers Class XII Science Biology Solutions

Shilpi

Asked: October 15, 2021In: Class 12 Biology

What role does pituitary gonadotrophins play during follicular and ovulatory phases of menstrual cycle and also explain the shift in steroidal secretions.

Class XII Science Biology Extra Questions Class XII Science Biology Solutions Class 12 Science Biology Terminal Exams Solutions Class 12th Biology Sample paper Questions

What are the basic characteristics of a modern land fill sites. List any three and mention the reasons for their use.

Define transgenic animals. Explain in detail any four areas where they can be utilised.

Select the options that are true for both asexual and sexual reproduction from the options given below:

Write a short note on electronic waste. List the various sources of e- wastes and the problems associated with the disposal of e-waste.

Elaborate how invasion by an alien species reduces the species diversity of an area.

Describe critically the main ideas behind the biological control of pests and diseases.

Embryo sacs of some apomictic species appear normal but contain diploid cells. Suggest a suitable explanation for the condition.

Although sexual reproduction is a long drawn, energy-intensive complex form of reproduction, many groups of organisms in Kingdom Animalia and Plantae prefer this mode of reproduction. Give atleast three reasons for this.

How do scientists extrapolate the total number of species on Earth?

What role does pituitary gonadotrophins play during follicular and ovulatory phases of menstrual cycle and also explain the shift in steroidal secretions.

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