Fish, amphibians, reptiles, birds, and mammals have similar embryos.

Question

They all start with gill slits. Fish and some amphibians grow to have gills. Some amphibians, reptiles, birds, and mammals develop lungs to breathe air.
They all start with tails. Fish, some amphibians, reptiles, and birds grow tails. Humans do not keep their tails.
Fish and reptiles develop scales. Amphibians, birds, and humans have skin. Birds have feathers, and humans have hair.

With which animal do humans exhibit the most linear relationship?(1 point)
Responses

reptiles
reptiles

birds
birds

fish
fish

amphibians
I chose birds but idk

Answer 1

The relationship between humans and the various animal groups you mentioned can vary depending on the criteria used to assess similarity. However, based on the embryonic development similarities you've specified, amphibians would exhibit a more linear relationship to humans compared to birds, reptiles, or fish.

Amphibians, like humans, share certain developmental characteristics such as early-stage gill slits and a more similar skin structure than reptiles or birds. Although humans do not keep their tails, the embryological development is similar in the early stages. Additionally, amphibians and mammals (humans) are both part of the clade Tetrapoda, which includes all land vertebrates.

So, based on embryonic development and evolutionary lineage, humans exhibit the most linear relationship with amphibians. If you're looking for a straightforward answer based on the context you provided, it would be amphibians rather than birds.