In cocker spaniels, black coats are dominant to red. In a cross between two cockers, the litter showed 2 black and 2 red. a) What must be the GTs of the parents?

b) Explain why.

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