Earth has 3 main planet zones because the differences in latitude and

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

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity

List five ways we are indebted to phytoplankton