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

Question

They all start with Gill slits. Fish and sum amphibians grow 2 have gills. Sum amphibians, reptiles, birds, and mammals develop lungs 2 breath air.
They all start with tails Fish, sun amphibians, reptiles, and birds grow tails. Humans dp keep their tails. Fish and reptiles develop scales. Amphibians, birds, and humans have skin. Birds have feathers, and humans have hair.

Which 2 animals exhibit da most linear relationships?

A ) Amphibians n fish

B ) Birds and humans

C ) Bird and reptiles

D ) Amphibians and reptiles

Answer 1

To determine which two animals exhibit the most linear relationships based on the similarities outlined in your statement, we can analyze the characteristics of the groups.

• A) Amphibians and fish: Both start with gill slits, and some amphibians retain gills as juveniles. They also both exhibit aquatic phases in their life cycles. However, amphibians have more characteristics that align with terrestrial life as they mature.

• B) Birds and humans: While birds and humans are both warm-blooded and share some traits (like having feathers/hair), the similarities are not as foundational as the other pairs. Humans do not have feathers, whereas birds do.

• C) Birds and reptiles: Birds are descended from reptiles, and they share many characteristics, such as laying eggs and having scales (in the form of feathers). However, their evolution has led to significant functional differences.

• D) Amphibians and reptiles: Both groups share several characteristics, such as having lungs for breathing air and a similar structure in their reproductive systems (laying eggs), while amphibians tend to have a dual life stage.

Considering these points, the best answer would be:

D) Amphibians and reptiles: They have a more linear relationship in terms of developmental characteristics and evolutionary traits, particularly in their adaptation to terrestrial environments.