A recent decline in the population of loggerhead turtles off the coast of Argentina made researchers curious. They hypothesized that this decline led to a decline in the overall algae and marine plant life in the region. Loggerhead turtles are not known to eat algae or marine plants, but they do consume conchs and crabs whose diet primarily consists of marine plant life and algae. Which finding, if true, would most directly support the researcher’s hypothesis? Overall decreases in the traditional food sources of the loggerhead turtle other than conchs could account for the decrease in the loggerhead turtle’s numbers. eliminateConchs and crabs have increased in population in the region while the population of loggerhead turtles has declined. eliminateConchs and crabs have been consuming too much of the region’s algae and marine plant population prior to the decline in loggerhead turtle population. eliminateThe overall population of algae and marine plants tends to be larger in regions where there are more loggerhead turtles and crabs. eliminate

Marine Biologist Laura Evans, Botanist Henry Gilbert, and their team delved into the domestication of sea creatures in Pacific Ocean reefs during the Neolithic Era (approximately 6000 to 3000 BCE). By analyzing the chemical makeup of the bones of various fish, turtles, and crabs from this era, the team inferred that natural sea vegetation made up the majority of the diet for fish and turtles, while crabs primarily subsisted on seaweed, a crop cultivated by humans. The team deduced that crabs were likely raised closer to human settlements, whereas fish and turtles were permitted to traverse farther away.11 Mark For Review11Which finding, if true, would most strongly support the team’s conclusion?A) Analysis of the animal bones unveiled that the crabs' diet also consisted of algae, which humans broadly cultivated in Pacific Ocean reefs during the Neolithic Era.B) The diets of fish, turtles, and crabs were found to vary based on what the cultivators in each Neolithic settlement could grow.C) Crabs' diets generally demand larger quantities of food and a broader range of nutrients than do fish and turtles' diets.D) Further examination of fish and turtle bones showed that their diets included small portions of seaweed as well.Select Answer(s)ABCD

The green sea turtle is an endangered species. The graph below shows the estimated number of green sea turtle nests on a beach in Costa Rica between 1970 and 2003.​​​Based on the information in the graph, which of the following is the most likely way humans affected the green sea turtle population during this time?AHumans passed laws preventing the collection of green sea turtles.BHumans collected more green sea turtle eggs for scientists to studyCHumans passed laws protecting animals that eat green sea turtle eggs.DHumans built more hotels on the beach where green sea turtles build nests.

One reason scientists study turtles is because they live in wildly various environments, and, as a result, could have morphological structures that reflect different adaptations. Scientists have theorized that the main determiner of variance in the shells of turtles is habitat difference. In a study, Fanrong Xiao and his colleagues examined this theory by finding prevailing trends across multiple species of turtle.Which finding from Xiao and his colleagues’ study, if true, would most directly challenge the assumption in the underlined sentence?Male and female turtles in the same environment had differently sloped and sized shells.eliminateTurtles living in freshwater environments were found to have more domed shells than turtles living in saltwater environments.eliminateShell shape became more flat in aquatic turtles as size increased and less flat in terrestrial turtles as size increased.eliminateThe turtle species studied were divided into four habitat types: marine, freshwater, mainland, and island.

According to the Article, why have some sea turtle nests been destroyed?

Researchers have hypothesized that a boom in the populations of harp seals and gray seals in some areas of the Atlantic Ocean is linked to the decline in the population of Atlantic cod, one of the main food sources of the seals. Atlantic cod are one of the species most impacted by human fishing, and in the 1990s their populations decreased to such a degree that many governments banned the fishing of Atlantic cod. Without having to compete with another apex predator, seals were allowed to hunt more cod than ever before. Which finding, if true, would most directly support the researchers’ hypothesis?Increases in the populations of harp seals and gray seals are also associated with the decrease of seals' prey other than Atlantic cod.eliminatePopulations of Atlantic cod tend to have seen greater increases in temperate waters, which are generally less hospitable to harp seals and gray seals than arctic waters. eliminatePopulations of harp seals and gray seals have increased most significantly in the regional waters of nations that have banned the fishing of Atlantic cod.eliminateIn the regional waters of nations that have banned the fishing of Atlantic cod, Atlantic cod populations increased, which resulted in a similar increase in the populations of harp seals and gray seals.