A) Explain how each of the following three ecological disruptions would affect the number and size of trophic levels in an ecosystem: i. Decrease in the available sunlight

ii. Increase in the number of producers

iii. Increase in the availability of a resource that was limiting the herbivore population size

B) Describe the concept of trophic efficiency.

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.

If an organ has six haploid chromosomes,how many chromosomes are present. 6 12

Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.