What are the two phases of speciation?

change of existing species

creation of new species from a single mutation to an individual

splitting of existing species into two or more different species

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !

What is the most abundant vertebrate on earth?

Alandfill with a plastic or clay liner that prevents the leaking of easter into soil and groundwater is called? a. a sanitary landfill b. a toxic waste site c. an unsanitary landfill d. a recycling center