Answer:
Las plantas son las primeras, los herbívoros son los segundos, los carnívoros pertenecen al tercer nivel trófico.
Explicación:
Las plantas son los primeros niveles tróficos debido a la producción de alimentos mediante el proceso de fotosíntesis. Aquellos organismos que se alimentan de plantas se consideran consumidores primarios y segundo nivel trófico. Aquellos organismos que se alimentan de consumidores primarios se consideran consumidores secundarios así como de tercer nivel trófico. El consumidor terciario se alimenta del consumidor secundario y cae en el cuarto nivel trófico.
The answer as far as I can tell is B). Everything else is silly lol.
The division of the peripheral nervous system where it is responsible for producing physiological symptoms (such as increased heart rate and butterflies in the stomach) under conditions of stress would be the sympathetic division. It is also called the emergency system since it prepares the body for any physical activity that would be intense.
Genes can be modified by number of ways. Now a days many tools have been developed and we can easily do genetic modifications.
homologous recombination. example in yeast
plasmid based modification. example in bacteria
crispr mechanism
tallen and zinc finger motifs
restriction enzymes
epigenetic enzymes.
rna interference.
