The unconscious id, according to Sigmund Freud, was the part of the mind composed of biological drives and the source of psychic energy.
The goal of the World Resource Simulation Center is best described as solving current problems regarding world resource use. They also have visual facilities that shows the trends of global and regional issues, the relevance of the issues, and the consequences of the different strategies.
The answer would be letter A.
I would believe the correct responses would be option 1,2,4.
Answer:
Skeletal muscle tissue is composed of cells called muscle fibers. When the nervous system signal reaches the neuromuscular junction a chemical message is released by the motor neuron. The chemical message, a neurotransmitter called acetylcholine, binds to receptors on the outside of the muscle fiber.
An ectotherm gets its heat from external sources
(Remember "ecto" means outer, "endo" means inner)