Trophic Levels
The first trophic level in any food pyramid.
Producer
Energy pyramids are always shaped like this due to energy loss.
Triangle
All the nerves in the body make up this part of the nervous system.
Peripheral Nervous System
These are chemical messengers travelling through the bloodstream.
Hormones
The path a nerve impulse takes during a reflex action. (What is is called?)
Reflex arc
The flow of energy
Most energy is lost from a food chain in this form.
Heat
Small branches that receive messages from other neurons.
Dendrites
The Control Centre of negative feedback loops.
Hypothalamus
This neuron type send messages between the Sensory and Motor neurons.
Interneuron (relay neuron)
These consumers break down dead organisms.
Decomposers
The rule for energy loss?
10% Rule.
The small gap (and structure) that send messages to other neurons.
Synapse
The "Master Gland" of the Endocrine System.
Pituitary Gland
The path a nerve impulse takes during day-to-day actions (what is this called?).
Stimulus - Response pathway
This consumer has no natural predators. State an example.
Apex predator
This pyramid shows total dry mass of organisms.
Pyramid of Biomass.
This insulates a neuron and speeds up nerve impulses.
Myelin Sheath
This hormone is released to increase blood glucose levels.
Glucagon
In a reflex arc, this type of neuron triggers the muscle/gland to carry out a response.
Motor Neuron
This process in producers allows energy to enter the food chain.
Photosynthesis
This pyramid shows all aspects of an ecosystem over a certain amount of time (typically a year).
Pyramid of Productivity
Unlike the nervous system, which acts quickly and short, the endocrine system causes responses that are ___ and ___.
Slower and long-lasting
Process of blood vessels expanding to release body heat.
Vasodilation
Why are reflexes important?
Protect us from danger