A team of scientists conducted a study of grassland ecosystem and estimated the total energy at each trophic level. Their data is shown below Explain the relationship between trophic levels and energy. Be sure to include The roles of the organisms found at the different trophic levels How each trophic level obtains energy? Why the available energy changes at each level?

After which event could you say that evolution has occurred? question 1 options: an allele frequency changes in a population. a white-eyed fly is born into a population of brown-eyed flies. a new predator comes into an environment. an animal gets fat.

What happened to rosalind franklin in 1956?

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling