the phosphorus cycle is important to ecosystem. choose all of these statements that are true concerning the phosphorus cycle.

the largest reservoir of phosphorus is sedimentary rock.

most of the phosphorus cycle occurs in the atmosphere.

phosphorus acid is the major acid found in acid rain.

major sources of phosphorus to aquatic ecosystems are fertilizer runoff, sewage leaks, and industrial wasters.

eccess phosphorus can lead to eutrophication.

i think its b

explanation:

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

economic impact of malaria is estimated to cost africa $12 billion every year. this figure factors in costs of health care, absenteeism, days lost in education, decreased productivity due to brain damage from cerebral malaria, and loss of investment and tourism.

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles