Which of the following groups would an animal with an exoskeleton, segmented body, and jointed appendages belong to a) mollusks b) segmented worms c) cnidarians d) arthropods

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

What best explains the inability for life to exist in earth early atmosphere

Crossing over is a method of (blank)?