fish frogs birds and monkeys all have an embryonic stage in which structures called pharyngeal slits appear on the sides of the throat. Based on this information, which of the following is the best conclusion about the evolutionary histories of fish, frogs, birds, and monkeys?a) The animals evolved from a common ancestorb) The animals did not develop lungs for breathingc) The animals are not adapted to eat the same kinds of foodd) The animals have evolved similar developmental rates from fertilization to birth

Repeated branching events, in which new species split off from a common ancestor, produce a multi-level "tree" that links all living organisms. Darwin referred to this process, in which groups of organisms change in their heritable traits over generations, as “descent with modification." Today, we call it evolution.

A

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.