Can someone plz me with these 3 new and last will give brainliest for right 11. to find the volume of a few small marbles, a student will need which of the following scientific tools? a. a balance and a centimeter ruler 3.0 b. a spring scale and a calculator c. a graduated cylinder and water d. a microscope and a micron ruler 12. a student includes the following sentence in a write-up of their investigation: the lead ball has a measured mass of 113 grams. which kind of scientific statement is this sentence? a. inference b. prediction c. conclusion d. observation 13. some students measure the mass of a small pile of leaves before and after the leaves decompose. each time the students measure the mass, they place a container with the decomposing leaves on a balance. before recording the mass of the leaves, the students must do which of the following? a. subtract the mass of the container b. add leaves from other plants to the container c. allow the leaves to settle in the container for a few days d. use a metric ruler to measure the volume of the container

Is it considered muscle s ennervation if sympathetic fibers innervate the vessels within the muscle?

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

Where does all the water go? according to the environmental protection agency (epa), in a typical wetland environment, 39% of the water is outflow; 46% is seepage; 7% evaporates; and 8% remains as water volume in the ecosystem (reference: united states environmental protection agency case studies report 832-r-93-005). chloride compounds as residuals from residential areas are a problem for wetlands. suppose that in a particular wetland environment the following concentrations (mg/l) of chloride compounds were found: outflow, 60.4; seepage, 73.7; remaining due to evaporation, 26.4; in the water volume, 46.8. (a) compute the weighted average of chlorine compound concentration (mg/l) for this ecological system. (round your answer to one decimal place.) mg/l (b) suppose the epa has established an average chlorine compound concentration target of no more than 58 mg/l. does this wetlands system meet the target standard for chlorine compound concentration? yes. the average chlorine compound concentration (mg/l) is too high. yes. the average chlorine compound concentration (mg/l) is lower than the target. no. the average chlorine compound concentration (mg/l) is lower than the target. no. the average chlorine compound concentration (mg/l) is too high.