Algol
the sun
alpha centauri
polaris
the big dipper
which is a binary star

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

Dermal tissue in plants stores 1.extra food 2.transports water and nutrients 3.transports waste materials 4.is similar to epithelial cells in animals

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat