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Consider that you have only uncovered two characteristics regarding a new species: that it is small (10 cm or less in length) and has a short lifespan (20 days or less). Which of the following reproductive tactics applies to this species the most likely?
- a)Breeds early and more than once in life and produces large number of small-sized offspring.
- b)Breeds late and only once in life and produces large number of small-sized offspring.
- c)Breeds early and only once in life and produces large number of small-sized offspring.
- d)Breeds early and only once in life and produces a small number of large-sized offspring.
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Consider that you have only uncovered two characteristics regarding a ...
Concept:
- An organism's Darwinian fitness is calculated as the number of offspring it leaves behind that, themselves, survive to reproduce.
- In evolutionary terms, it is of no consequence if an organism is a fine, fully mature, physical specimen, or the dominant member of the herd, or even that an individual produces a lot of young but none of them survive.
- In the relay race of evolution, getting as many copies of your genes into the next generation as possible is the only goal.
- As you might imagine, there are many ways to be reproductively successful.
- One way is to become the dominant animal in a pack, and to monopolize mating opportunities, but another way is to be submissive and sneaky, mating with others when the dominant animal is not around to stop you.
- similarly animals also strategize the number of off springs to be produced.
Explanation:
r-selection:
- On one extreme are the species that are highly r-selected.
- Such a species puts only a small investment of resources into each offspring, but produces many such low effort babies.
- Such species are also generally not very invested in protecting or rearing these young. Often, the eggs are fertilized and then dispersed.
- The benefit of this strategy is that if resources are limited or unpredictable, you can still produce some young.
- However, each of these young has a high probability of mortality, and does not benefit from the protection or nurturing of a caring parent or parents.
- r-selected babies grow rapidly, and tend to be found in less competitive, low quality environments.
- Although not always the case, r-selection is more common among smaller animals with shorter lifespans and, frequently, non-overlapping generations, such as fish or insects.
- The young tend to be precocial (rapidly maturing) and develop early independence.
- Semelparous describes organisms that reproduce exactly once in a lifetime.
- Some examples are female praying mantises eating their mates once eggs are fertilized.
- Most of r strategists are semelparous.
K-selection:
- On the other extreme are species that are highly K-selected.
- K refers to the carrying capacity, and means that the babies are entering a competitive world, in a population at or near its carrying capacity.
- K-selected reproductive strategies tend towards heavy investment in each offspring, are more common in long-lived organisms, with a longer period of maturation to adulthood, heavy parental care and nurturing, often a period of teaching the young, and with fierce protection of the babies by the parents.
- K-selected species produce offspring that each have a higher probability of survival to maturity.
- Although not always the case, K-selection is more common in larger animals, like whales or elephants, with longer lifespans and overlapping generations.
- The young tend to be altricial (immature, requiring extensive care).
- K -selected species are more likely to be iteroparous, that is, to reproduce in numerous bouts.
- They also tend to invest in survival more than r -selected species, and may generally be more intelligent.
Option 1:
Breeds early and more than once in life and produces large number of small-sized offspring.
- Consider the explanation above thus this option is not true, as most of r strategists are semelparous.
Option 2:
Breeds late and only once in life and produces large number of small-sized offspring.
Consider the explanation above thus this option is not true
Option 3:
Breeds early and only once in life and produces a large number of small-sized offspring.
Consider the explanation above thus this option is true,
as semelparity is a phenomenon where organisms reproduce exactly once in a lifetime. Some examples are female praying mantises eating their mates once eggs are fertilized. and most of r strategists are semelparous.
Option 4:
Breeds early and only once in life and produces a small number of large-sized offspring.
Consider the explanation above thus this option is not true
Hence the correct answer is option 3
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Consider that you have only uncovered two characteristics regarding a new species: that it is small (10 cm or less in length) and has a short lifespan (20 days or less). Which of the following reproductive tactics applies to this species the most likely?a)Breeds early and more than once in life and produces large number of small-sized offspring.b)Breeds late and only once in life and produces large number of small-sized offspring.c)Breeds early and only once in life and produces large number of small-sized offspring.d)Breeds early and only once in life and produces a small number of large-sized offspring.Correct answer is option 'C'. Can you explain this answer?
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Consider that you have only uncovered two characteristics regarding a new species: that it is small (10 cm or less in length) and has a short lifespan (20 days or less). Which of the following reproductive tactics applies to this species the most likely?a)Breeds early and more than once in life and produces large number of small-sized offspring.b)Breeds late and only once in life and produces large number of small-sized offspring.c)Breeds early and only once in life and produces large number of small-sized offspring.d)Breeds early and only once in life and produces a small number of large-sized offspring.Correct answer is option 'C'. Can you explain this answer? for Software Development 2025 is part of Software Development preparation. The Question and answers have been prepared according to the Software Development exam syllabus. Information about Consider that you have only uncovered two characteristics regarding a new species: that it is small (10 cm or less in length) and has a short lifespan (20 days or less). Which of the following reproductive tactics applies to this species the most likely?a)Breeds early and more than once in life and produces large number of small-sized offspring.b)Breeds late and only once in life and produces large number of small-sized offspring.c)Breeds early and only once in life and produces large number of small-sized offspring.d)Breeds early and only once in life and produces a small number of large-sized offspring.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Software Development 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider that you have only uncovered two characteristics regarding a new species: that it is small (10 cm or less in length) and has a short lifespan (20 days or less). Which of the following reproductive tactics applies to this species the most likely?a)Breeds early and more than once in life and produces large number of small-sized offspring.b)Breeds late and only once in life and produces large number of small-sized offspring.c)Breeds early and only once in life and produces large number of small-sized offspring.d)Breeds early and only once in life and produces a small number of large-sized offspring.Correct answer is option 'C'. Can you explain this answer?.
Consider that you have only uncovered two characteristics regarding a new species: that it is small (10 cm or less in length) and has a short lifespan (20 days or less). Which of the following reproductive tactics applies to this species the most likely?a)Breeds early and more than once in life and produces large number of small-sized offspring.b)Breeds late and only once in life and produces large number of small-sized offspring.c)Breeds early and only once in life and produces large number of small-sized offspring.d)Breeds early and only once in life and produces a small number of large-sized offspring.Correct answer is option 'C'. Can you explain this answer? for Software Development 2025 is part of Software Development preparation. The Question and answers have been prepared according to the Software Development exam syllabus. Information about Consider that you have only uncovered two characteristics regarding a new species: that it is small (10 cm or less in length) and has a short lifespan (20 days or less). Which of the following reproductive tactics applies to this species the most likely?a)Breeds early and more than once in life and produces large number of small-sized offspring.b)Breeds late and only once in life and produces large number of small-sized offspring.c)Breeds early and only once in life and produces large number of small-sized offspring.d)Breeds early and only once in life and produces a small number of large-sized offspring.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Software Development 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider that you have only uncovered two characteristics regarding a new species: that it is small (10 cm or less in length) and has a short lifespan (20 days or less). Which of the following reproductive tactics applies to this species the most likely?a)Breeds early and more than once in life and produces large number of small-sized offspring.b)Breeds late and only once in life and produces large number of small-sized offspring.c)Breeds early and only once in life and produces large number of small-sized offspring.d)Breeds early and only once in life and produces a small number of large-sized offspring.Correct answer is option 'C'. Can you explain this answer?.
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