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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

Parul

Asked: October 15, 2021In: Class 12 Biology

In an aquarium two herbivorous species of fish are living together and feeding on phytoplanktons. As per the Gausses principle, one of the species is to be eliminated in due course of time, but both are surviving. How? And what possibly happened to both the species?

Class 12 Science Important Syllabus Questions Answers Class 12th Biology NCERT Based Questions Answers Class 12 Science Biology Terminal Exams Solutions Class 12th Science Session 2022-2023

Sushant Joshi

Asked: October 15, 2021In: Class 12 Biology

Describe the role of Agrobacterium tumefaciens in transforming a plant cell.

Class 12 Science Biology Important Questions Class 12th Biology NCERT Based Questions Answers Class 12th Biology Sample paper Questions Class 12th Science Session 2022-2023

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.

12th Science Biology Extra Questions Class 12th Science Session 2022-2023 12th Biology Terminal Exam Based Extra Questions Class 12th Biology NCERT Based Questions Answers

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 2022-2023

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

In an aquarium two herbivorous species of fish are living together and feeding on phytoplanktons. As per the Gausses principle, one of the species is to be eliminated in due course of time, but both are surviving. How? And what possibly happened to both the species?

Describe the role of Agrobacterium tumefaciens in transforming a plant cell.

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.

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