Plz answer I only have today to answer this! Plz help me!! What do the arrows in the diagram represent?

A. That some organisms are more important than others

B. The direction of energy flow through organisms

C. The sequence of events in feeding relationships

D. That some organisms are not important

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.

What mass of glucose is produced when 54g of water react with carbon dioxide