Class 12 Exam > Class 12 Questions > What are the 3 phases in a life cycle (in ord...
Start Learning for Free
What are the 3 phases in a life cycle (in order)?
- a)reproductive, senescence, juvenile
- b)juvenile, senescence, death
- c)reproductive, senescence, death
- d)juvenile, reproductive, senescence
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
What are the 3 phases in a life cycle (in order)?a)reproductive, senes...
Life Cycle Phases
The life cycle of an organism can be divided into three phases, which are:
1. Juvenile Phase
- This phase starts from the birth or hatching of an individual and lasts until it reaches reproductive maturity.
- During this phase, the individual undergoes significant growth and development, acquires skills needed for survival and learns behaviors necessary for reproduction.
- This phase varies in duration depending on the species and environmental conditions.
2. Reproductive Phase
- This phase starts when an individual reaches sexual maturity and begins to reproduce.
- During this phase, an individual engages in courtship behavior, mates and produces offspring.
- The reproductive phase is essential for the survival and continuation of a species.
3. Senescence Phase
- This phase starts when an individual reaches the end of its reproductive life.
- During this phase, an individual experiences a decline in physical and cognitive abilities, making it more vulnerable to disease, predation, and environmental stressors.
- This phase leads to death, which marks the end of an individual's life cycle.
Therefore, the correct answer is option 'D', which states the three phases in order as juvenile, reproductive, and senescence.
The life cycle of an organism can be divided into three phases, which are:
1. Juvenile Phase
- This phase starts from the birth or hatching of an individual and lasts until it reaches reproductive maturity.
- During this phase, the individual undergoes significant growth and development, acquires skills needed for survival and learns behaviors necessary for reproduction.
- This phase varies in duration depending on the species and environmental conditions.
2. Reproductive Phase
- This phase starts when an individual reaches sexual maturity and begins to reproduce.
- During this phase, an individual engages in courtship behavior, mates and produces offspring.
- The reproductive phase is essential for the survival and continuation of a species.
3. Senescence Phase
- This phase starts when an individual reaches the end of its reproductive life.
- During this phase, an individual experiences a decline in physical and cognitive abilities, making it more vulnerable to disease, predation, and environmental stressors.
- This phase leads to death, which marks the end of an individual's life cycle.
Therefore, the correct answer is option 'D', which states the three phases in order as juvenile, reproductive, and senescence.
Free Test
FREE
| Start Free Test |
Community Answer
What are the 3 phases in a life cycle (in order)?a)reproductive, senes...
There are 3 phases in a life cycle.
(i) Juvenile phase/ vegetative phase: period from birth to maturation of reproductive systems.
(ii) Reproductive phase: period when the reproductive systems have matured and ready to produce offspring.
(iii) Senescence: period when the organism starts growing old and starts degrading.
(i) Juvenile phase/ vegetative phase: period from birth to maturation of reproductive systems.
(ii) Reproductive phase: period when the reproductive systems have matured and ready to produce offspring.
(iii) Senescence: period when the organism starts growing old and starts degrading.
|
Explore Courses for Class 12 exam
|
|
What are the 3 phases in a life cycle (in order)?a)reproductive, senescence, juvenileb)juvenile, senescence, deathc)reproductive, senescence, deathd)juvenile, reproductive, senescenceCorrect answer is option 'D'. Can you explain this answer?
Question Description
What are the 3 phases in a life cycle (in order)?a)reproductive, senescence, juvenileb)juvenile, senescence, deathc)reproductive, senescence, deathd)juvenile, reproductive, senescenceCorrect answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about What are the 3 phases in a life cycle (in order)?a)reproductive, senescence, juvenileb)juvenile, senescence, deathc)reproductive, senescence, deathd)juvenile, reproductive, senescenceCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What are the 3 phases in a life cycle (in order)?a)reproductive, senescence, juvenileb)juvenile, senescence, deathc)reproductive, senescence, deathd)juvenile, reproductive, senescenceCorrect answer is option 'D'. Can you explain this answer?.
What are the 3 phases in a life cycle (in order)?a)reproductive, senescence, juvenileb)juvenile, senescence, deathc)reproductive, senescence, deathd)juvenile, reproductive, senescenceCorrect answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about What are the 3 phases in a life cycle (in order)?a)reproductive, senescence, juvenileb)juvenile, senescence, deathc)reproductive, senescence, deathd)juvenile, reproductive, senescenceCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What are the 3 phases in a life cycle (in order)?a)reproductive, senescence, juvenileb)juvenile, senescence, deathc)reproductive, senescence, deathd)juvenile, reproductive, senescenceCorrect answer is option 'D'. Can you explain this answer?.
Solutions for What are the 3 phases in a life cycle (in order)?a)reproductive, senescence, juvenileb)juvenile, senescence, deathc)reproductive, senescence, deathd)juvenile, reproductive, senescenceCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of What are the 3 phases in a life cycle (in order)?a)reproductive, senescence, juvenileb)juvenile, senescence, deathc)reproductive, senescence, deathd)juvenile, reproductive, senescenceCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
What are the 3 phases in a life cycle (in order)?a)reproductive, senescence, juvenileb)juvenile, senescence, deathc)reproductive, senescence, deathd)juvenile, reproductive, senescenceCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for What are the 3 phases in a life cycle (in order)?a)reproductive, senescence, juvenileb)juvenile, senescence, deathc)reproductive, senescence, deathd)juvenile, reproductive, senescenceCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of What are the 3 phases in a life cycle (in order)?a)reproductive, senescence, juvenileb)juvenile, senescence, deathc)reproductive, senescence, deathd)juvenile, reproductive, senescenceCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice What are the 3 phases in a life cycle (in order)?a)reproductive, senescence, juvenileb)juvenile, senescence, deathc)reproductive, senescence, deathd)juvenile, reproductive, senescenceCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 12 tests.
|
|
Explore Courses for Class 12 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup