Select all that apply. chromosomes are rod shaped structures that contain dna are located in the nucleus occur in numbers that are the same for all members of a certain species occur in numbers that are the same for all organisms are organized into karyotypes for scientists to analyze

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.

the planets have a circular orbit around the sun.