In cells, the energy to transport substances from areas of low concentrations to areas of high concentration comes from which of the following molecules? amino acids atp rna fatty acids

The model illustrates a process by which a substance is taken up by a cell

Identify the type of energy used in each action. the flexing of an arm muscle: a signal transduction process by a neuron: a ball at the top of a hill: 1. electrical energy 2. mechanical energy 3. gravitational potential energy

Achild is suffering from fever but the doctor cannot immediately pinpoint the alignment on the basis of this one symptom explain why also mention other two such general symptoms