Answer:
co2 is a shorter name for carbon dioxide
Producer I believe because producers have the most energy at the bottom of the pyramid
One will fall faster than the other, but only if the gravitational force applied to each one is different
Answer:
Xylem transfers water up from the roots to the leaves.
Phloem transfers sugars (glucose) produced in the leaves down to the roots to be stored.
Answer:
synapse is the connection of the axons of one neuron and the dendrites of another, myelin is the substance that protects the grey matter from the bony surface of the head for example, nucleus of a neuron is the main part of the nersous cell and neurotransmiters are the substances that make synapses posible ( and sometimes efficient)
