Which of the following is an example of a closed system? A) An estuary where fresh and ocean water mix. B) A chemical reaction within deep ocean organisms allowing them to glow. C) A living single-celled organism such as phytoplankton. D) A river that flows into the ocean.

If two parents who's blood types are both b produce a child that has blood type o, what can you say about the parent's genotybes? oa) one is ii ob) one is ibi oc) both are bi od) nothing, this is impossible

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.

The importance of the mind as a part of the body is an example of: