Which of the following groups can contain mutlicellular organisms? Archea

Protists

Animals

Bacteria

Animals are multicellular organisms for example a cow is multicellular

Because calorimetry is used to measure the heat of a reaction, it is a crucial part of thermodynamics. in order to measure the heat of a reaction, the reaction must be isolated so that no heat is lost to the environment. this is achieved by use of a calorimeter, which insulates the reaction to better contain heat.

The heat flow would be from he counter to the ice cube, because the ice cube is colder than the counter and heat moves from high heat to low heat.