What makes a fossil an index fossil A. The fossil does not contain trance of DNA
B. The fossil Connor be dated using radioactive dating
C. The fossil comes from an Anaimal that did not evolve
D the fossil was formed only during certain shot time period

Populations of blue-winged warblers, a type of bird, migrate south in the winter and return to canadian breeding grounds in the spring. as global temperatures have increased due to climate change, spring has started arriving in the warbler's breeding grounds earlier in the year, before the warblers return. warblers now arrive at their breeding grounds too late to select ideal nesting sites and to feed on important early-spring food sources how are populations of blue-winged warblers most likely to be affected by the earlier arrival of spring? o a. populations will go extinct since the warblers will stop migrating to breeding grounds. b. populations will be unaffected since most species can quickly adapt to effects of climate change. c. populations will increase since warmer temperatures are generally beneficial to survival, d. populations will decline since individuals will be less likely to successfully reproduce, reset next

The process by which natural forces move weathered rock and soil brim one place to another is called

What is the name of the two satelites on mars