Yellowfin tuna, or Thunnus albacores, are large sport fish that are found in tropical and subtropical waters around the world.
They typically school under objects such as boats or patches of driftwood for protection from predators. Schooling under these
structures also provides yellowfin tuna with easy access to a food source such as smaller herbivorous fish that may be
foraging for food around the structures. Which trophic level does yellowfin tuna fill in a food chain?

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Which of the following is an example of competition that could be found in a forest? question 14 options: deer eat berries and their droppings seed new areas creating more berry bushes two fox populations utilize the same rabbit population as their main food source two hawk populations utilize the same scorpion population as their main food source lack of sunlight due to changes in the seasons restricts the growth of certain plants

Mrna decodes information from the original dna master plan to build proteins in the during the process of ribosomes.