The tight pairing of two homologous chromosomes is called . This is the point at which genetic information may be exchanged, producing organism .

O A. synapsis, homogeneity
O B. chiasma, homogeneity
O C. synapsis, diversity
O D. chiasma; diversity

Kelly ran electricity though a sample of water using electrolysis. the water changed into two gases, x and y. it was not possible to break down the gases x and y into simpler particles.

How does the molecular clock work? a. it analyzes the brain functionality of two different species. b. it examines and compares the physical characteristics of two different species. c. it illustrates relationships between two different species. d. it compares the number of mutations that exist in the dna of two different species.

Rarefaction is used for which of the following? a. creating a representative sample b. studying how disease impacts populations c. rediscovering species thought to be instinct d. determining which sea creatures live in an area