Axolotl Quiz

What is unique about axolotls' regeneration abilities?

• They can only regenerate their tail.

• They can regenerate multiple body parts, including limbs, heart, and brain tissues.

• They can regenerate their entire body from a single cell.

• They cannot regenerate any part of their body.

During which stage of metamorphosis do axolotls develop their adult features without losing their larval characteristics?

• Embryonic stage

• Larval stage

• Paedomorphic stage

• Metamorphic stage

What triggers metamorphosis in axolotls in a laboratory setting?

• High temperatures

• Introduction of certain hormones

• Lack of food

• Increased light exposure

What is a key factor in the axolotl's ability to regenerate its limbs?

• The presence of unique bacteria in their habitat

• The axolotl's diet

• Specialized stem cells at the injury site

• The temperature of the water

Tags

NGSS.HS-LS1-4

Dr. Amelia suspects that a change in cellular activity causes Albert's reduced regeneration rate. She uses a compound called Brd-U, which is taken up by cells that are actively replicating (S-phase), and compares Brd-U uptake in tissue samples from Al's paedomorph stage (blue) with his metamorph stage (red).

Based on the figure showing the amount of Brd-U+ cells (Monaghan et al. 2014), what can be determined from this experiment?

• Inducing metamorphosis altered Al's cell cycle.

• Al's limb will never grow back completely.

• There is an error in cellular migration.

Tags

NGSS.HS-LS1-4

Dr. Amelia also compared the different stages of Albert's limb regrowth occurred. Based on these results (Monaghan et al., 2014), which of the following images correlates to Albert's limb regrowth on day 30?

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