PARA HOY (23/03/2020): leer las páginas 106 y 107 y hacer el ejercicio 8 de la página 107
Platyhelminthes, nematodes and annelids represent three groups of invertebrates that share several characteristics:
Bilateral symmetry
A sof, worm-shaped body with no skeleton
No loegs: the use cilia and muscle contractions to move around
ACTIVITY:
8. Compare platyhelminthes, nematodes and annelids. Make a table with four columns and these headings: habitat, nutrition, body and examples
Comentarios