El átomo de este ciclo tiene varias rutas por las que circula entre el medio ambiente y los seres vivos. Una de estas rutas se da cuando un organismo aerobio exhala y las plantas lo captan del aire y lo convierten en carbohidratos.

The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations

Gram-negative bacteria have a cell wall that is! and does not accept the stain, making itappear