A cricket population includes approximately the same number of black and light-brown crickets. Black crickets are easier for birds to locate and eat. over time , the population begins to consist of only light-brown crickets. The change in the color of the cricket population is a result of A. limited resources
B. Natural Selection
C. Geographic isolation
D. Climate change

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.

This is collection of data made by comparing objects in standard units. in science, the units are metric.

Does all the energy stored by the phytoplankton reach the top level of the pyramid