What statement provides the strongest evidence to support the claim that birds evolved from dinosaurs? A.
A fossilized nest of the herbivorous dinosaur Brachiosaurus shows that it laid external eggs.
B.
A fossilized rib cage of the semi-aquatic dinosaur Spinosaurus shows that it had lungs.
C.
Fossils of the winged dinosaur Archaeopteryx show that it had modified scales that produced feathers.
D.
Fossils of the beaked dinosaur Ankylosaurus show that it had modified scales that produced hard, bony plates.

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 bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

Rachel ate a piece of fruit and happened to drop the seeds in her backyard. after a few weeks, she saw a small plant with flowers growing in the backyard. which group does this plant belong to? a. angiosperms b. gymnosperms c. pteridophytes d. bryophytes e. chytrids