What is one piece of evidence that caused wegener to think that continents moved? a. he found an old map of the world that showed movement, b. he found similar fossils on different continents that are separated by oceans. c. he proved his hypothesis with an experiment that measured movement. d. he observed the continents moving with his own eyes.

Which organism is the producer in this food web? 7th grade question. a) arthropods b) birds c) fungi d) plants

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

What is the main function of the central vacuole in a plant cell? a. absorbs energy from the sun to produce food b. holds water and maintains turgor pressure c. breaks down molecules to release energy d. contains the cell's genetic material