DIZNR INTERNATIONAL

BIOLOGY- REPRODUCTION IN ORGANISM LIFE SPAN Part 2.

BIOLOGY- REPRODUCTION IN ORGANISM LIFE SPAN Part 2.

https://www.gyanodhan.com/video/3B1.%20Class%2011%20and%2012%20IIT%20NEET/Biology/120.%20BIOLOGY-%20REPRODUCTION%20IN%20ORGANISM%20LIFE%20SPAN%20Part%202.mp4]

Here’s Part 2: Life Span in Organisms (Reproduction in Organisms)

LIFE SPAN OF ORGANISMS

What is Life Span?

The life span of an organism is the period from its birth to its natural death. It varies greatly among different species.

Life Span of Different Organisms

Life Span vs. Size

Connection Between Life Span & Reproduction

Would you like me to continue with Part 3: Asexual Reproduction?

BIOLOGY- REPRODUCTION IN ORGANISM LIFE SPAN Part 2.

Year Science – Botany Unit – 1 Reproduction in Organisms

CBSE Class 12 Biology – cloudfront.net

REPRODUCTION IN ORGANISMS

Chapter 2-Human Reproduction

NCERT-Class-12-Biology.pdf

Certainly! Here’s Part 2 of your Biology notes on “Reproduction in Organisms”, focusing on the Life Span concept. It’s ideal for Class 12, NEET, and foundational understanding.


BIOLOGY – Reproduction in Organisms

Part 2: Life Span


What is Life Span?

The life span of an organism is the period from birth to the natural death of that organism.

It is not necessarily related to size or complexity. For example, some insects may live only for a few days, while some large trees can live for thousands of years.


Key Features of Life Span


Examples of Life Span in Various Organisms:

Organism Approximate Life Span
Mayfly 1 day
Rice Plant 3–4 months
Dog 10–13 years
Crow 15 years
Horse 25–30 years
Elephant 60–70 years
Parrot 140 years
Tortoise 100–150 years
Banyan Tree Over 200 years

Important Concepts Related to Life Span

1⃣ Mortality:

2⃣ Reproduction Phase:

3⃣ Biological Immortality (Rare Cases):


NEET MCQ Practice:

Q: Which of the following organisms has the shortest life span?
A) Crow
B) Rice Plant
C) Mayfly
D) Dog

Answer: C) Mayfly


Quick Recap:


Would you like:

Let me know, and I’ll prepare those for you!

BIOLOGY- REPRODUCTION IN ORGANISM LIFE SPAN Part 2.