This idea would follow from the dobzhansky-mayr theory of speciation.

a.) geographic isolation happens before speciation.
b.) speciation is not related to changes in the environment.
c.) isolated populations evolve differences gradually as they adapt to the environment.
d.) the origin of species happens through adaptation by natural selection.

Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time. c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions

Researchers want to use edna to look for an invasive species in the water which of the steps would be likely do last

Isotopes of the same element have differ in their