Which animals have developed the capacity for regeneration?Hydra, StarfishPlasmodiumEarthwormSpongilla
Question
Which animals have developed the capacity for regeneration?Hydra, StarfishPlasmodiumEarthwormSpongilla
Solution
Several animals have developed the capacity for regeneration. Here are a few examples:
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Hydra: These are small, simple aquatic animals that can regenerate their entire body from just a fragment. This is because their cells are continually dividing and can change into any type of cell.
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Starfish: Starfish can regenerate lost arms or even their entire body from a single arm. This is possible because most of their vital organs are located in their arms.
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Plasmodium: Plasmodium is a genus of parasitic protozoa. They have a complex life cycle that involves several stages of development, some of which occur in the host's liver where they can regenerate.
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Earthworm: If an earthworm is cut in half, it can regenerate the lost part. However, only the head end (the part with the mouth) can regenerate a new tail. The tail end cannot grow a new head.
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Spongilla: Spongilla, also known as freshwater sponges, can regenerate from small fragments. This is because their cells can change their function to replace lost or damaged parts.
Similar Questions
M2 Question 9 Text 1 Most animals can regenerate some parts of their bodies, such as skin. But when a three-banded panther worm is cut into three pieces, each piece grows into a new worm. Researchers are investigating this feat partly to learn more about humans’ comparatively limited abilities to regenerate, and they’re making exciting progress. An especially promising discovery is that both humans and panther worms have a gene for early growth response (EGR) linked to regeneration. Text 2 When Mansi Srivastava and her team reported that panther worms, like humans, possess a gene for EGR, it caused excitement. However, as the team pointed out, the gene likely functions very differently in humans than it does in panther worms. Srivastava has likened EGR to a switch that activates other genes involved in regeneration in panther worms, but how this switch operates in humans remains unclear.9 Mark For ReviewBased on the texts, what would the author of Text 2 most likely say about Text 1’s characterization of the discovery involving EGR? A) It is reasonable given that Srivastava and her team have identified how EGR functions in both humans and panther worms. B) It is overly optimistic given additional observations from Srivastava and her team. C) It is unexpected given that Srivastava and her team’s findings were generally met with enthusiasm. D) It is unfairly dismissive given the progress that Srivastava and her team have reported.
Text 1Most animals can regenerate some parts of their bodies, such as skin. But when a three-banded panther worm is cut into three pieces, each piece grows into a new worm. Researchers are investigating this feat partly to learn more about humans’ comparatively limited abilities to regenerate, and they’re making exciting progress. An especially promising discovery is that both humans and panther worms have a gene for early growth response (EGR) linked to regeneration.Text 2When Mansi Srivastava and her team reported that panther worms, like humans, possess a gene for EGR, it caused excitement. However, as the team pointed out, the gene likely functions very differently in humans than it does in panther worms. Srivastava has likened EGR to a switch that activates other genes involved in regeneration in panther worms, but how this switch operates in humans remains unclear.Based on the texts, what would the author of Text 2 most likely say about Text 1’s characterization of the discovery involving EGR?A) It is reasonable given that Srivastava and her team have identified how EGR functions in both humans and panther worms.B) It is overly optimistic given additional observations from Srivastava and her team.C) It is unexpected given that Srivastava and her team’s findings were generally met with enthusiasm.D) It is unfairly dismissive given the progress that Srivastava and her team have reported.
Which one of the two multicellular organisms Spirogyra and Planariareproduces by regeneration and why ? Give an example of any otherorganism which can also reproduce by the same process.
ower of regeneration is lowest in :-
Mention reasons why more complex organisms do not give rise to new individuals through regeneration
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