<span>there are two types of speciation: allopatric and sympatric. For allopatric speciation there must be a geographical separation between two populations (a mountain for example). For sympatric speciation there are a LOT of possible barriers. Hope this helps! </span>
Most earthquakes happened along the mid ocean ridge !
Answer:
Each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. Each parent contribute 23 of their chromosomes to create you.
Explanation:
He would perform an experiment.
Answer:
B. Restriction Endonuclease
Explanation:
Found in bacteria and are used to cut out a section of DNA.