Physics

Physics, 29.06.2019 11:30, Furyplayzzz

If there are 20 earthworms in a garden that covers 5 square meters, what is the population density of the earthworms? a. 20 earthworms b. 4 c. 100 earthworms per square meter d. 4 earthworms per square meter

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Biology, 26.06.2019 13:40, Zshotgun33

Which statement describes how to appropriately handle live earthworms in a lab investigation? pick up earthworms gently with moist hands. place individual earthworms on the lab table while setting up equipment. press the ends of the earthworms firmly against the table to keep them still. hold onto earthworms tightly with metal tweezers.

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Biology, 26.09.2019 02:30, maddiemccarter3892

Which statement describes how to appropriately handle live earthworms in a lab investigation? a.pick up earthworms gently with moist hands. b.place individual earthworms on the lab table while setting up equipment. c.press the ends of the earthworms firmly against the table to keep them still. d.hold onto earthworms tightly with metal tweezers.

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Biology, 08.11.2019 23:31, Gabriel134

Abiologist is studying the possible role of earthworms on the fertility of farm soils. as part of this research, the number of earthworms per acre of farmland is being estimated. during the first phase of this study, a total of 5 one-meter square samples were taken per acre. the number of earthworms in each of the five samples was carefully counted and the results used to estimate the total number of earthworms per acre. how can this estimate of the number of earthworms per acre be improved?

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