Each year, an area of the Gulf of Mexico becomes very low in oxygen due to increased growth of algae caused by excessive runoff from the
Mississippi River. Which of the following statements reflects the most
likely effects of decreased oxygen on aquatic organisms? Aquatic
organisms

A begin using algae as a food source.
B move to an area with more oxygen.
C start to breathe carbon dioxide gas.
D compete with the algae for space.

The wings of insects, birds, and bats evolved independently but carry out similar functions. this is an example of a. analogous structures. b. embryonic structures. c. vestigial structures. d. homologous structures.

Antoine manages a number of apartment buildings that use natural gas for heating, cooking, and laundry. the scatter plot shows the correlation between the outside air temperature and antoine's natural gas bill. which type of correlation does the plot illustrate?

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.