Identifying fossils look at the sample of sedimentary rock to determine which fossil is the oldest. 1 2 3 4 where would you expect to find the simplest body plans? 1 2 3 4 the levels of a sedimentary rock are shown. from top to bottom, the levels are 1, 2, 3, 4.

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.

When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it

The climate on the leeward side of a mountain differs from that on the windward side mostly in