D)lipids weigh less and store more energy(gram for gram) than carbohydrates
<span>Your skeleton is internal, which means it is contained inside of you. A grasshopper has an external skeleton, or exoskeleton, with everything contained inside it. </span>
Dendrite.
A dendrite is a projection from a neuron that propagates to the cell body the electrochemical stimulation it receives from other neurons.
Dendrites were first described by Wilhelm His, in 1889,<span> as the "protoplasmic processes" that come from a neuron. Later, </span>Otto Friedrich Karl Deiters distinguished the axon from the dendrites as another different structure.
Neurons transmit electrical messages or impulses
An evolutionary change. According to Darwin, organisms face multiple events where, without a change to match the dangers posed externally (such as environment, enemy threat, etc) that organism will perish without such variation.