Paleoclimatologists study ice cores to investigate earth’s past climate. they use methods such as oxygen isotope analysis. which feature inside the ice are the scientists interested in analyzing and why? they search for the geological layer at which ice turns to water, which is an indicator of past precipitation data. they seek single-celled microorganisms deep within the ice to assess the efficiency with which they processed oxygen. they study air bubbles trapped in the ice, comparing their chemical composition between past and present. they build a temperature and albedo profile of ice and water samples to predict when and where climate change is eminent.

List two new traits (structural or behavioral) that each new species of rat might demonstrate as it adapts to the conditions on two of the four islands. choose only two islands that are described in the lesson. record the island latter and the major habitat feature of the island. then list two new traits each rat subspecies might demonstrate in order to survive the habitat on that island. note: new traits should be unique to that island and be in response to that island’s habitat feature. i cannot remember islands that were names in the lesson so only answer if you have done the lesson (5.13 life science 7b) choose 2 of the islands and describe a structural and a behavioral trait for a rat on each island so 4 total answers, 2 different structurals and 2 different behaviorals, one for each rat for each island

Which if the following best describes why invertebrates isn’t considered a scientifically valid word when classifying animals

How can scientists use the fossil record to find evidence of relationships between different species?