Select the correct answer. Over the last 250 million years, the world changed from a single land mass to a number of different continents. One reason for the change is
expanding ocean floors. What causes ocean floors to expand?
A. convergent plates
B. divergent plates
C. slab pull
D. uplift

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

Construct an explanation about the function of mitosis for multicellular organisms

Aperson with age is more likely to catch diseases that healthy people usually don’t catch. what are these infections called?