Which two factors most likely caused this landslide

Although there are a limited number of amino acids many different types of proteins exist because..

Which of the following would be least likely to support the modern concept of biological evolution? ( 2 points) a)different species of organisms with similar bone patterns b)different species of organisms with similar reproductive rates species in c)different domains with similar metabolic pathways species in d)different kingdoms with similar cellular structures.

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment