Climate change has wide-ranging impacts all over the globe. One impact of a warming climate is the changes to migration in over twenty species of migratory birds on the East Coast of the United States. For species with little genetic diversity, these changes to
their migration can cause harm to the species. What question can a researcher ask to address the changes to the climate and the
impacts on migratory species?
A)
Will a warmer climate induce the birds to shed feathers, reducing their
flight ability?
B)
Will a warmer climate lead to earlier nesting and a lack of food availability
for birds?
Will a warmer climate cause birds to build larger nests, reducing their
visibility to mates?
D)
Will a warmer climate reduce the pests to the bird species by causing
mutations in those insect pests?

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Which of these is true for bacteria because they are prokaryotic cells? a. they can engulf body cells in order to make memory cells. b. they must invade viruses in order to reproduce. c. they are much larger than eukaryotic body cells. d. they can reproduce on their own outside of other cells.

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.