True. Annelids are true coelomates, as they have a muscular system lining their body cavity.
So, the population went up with every spring season and fell slightly in the winter; it increased within the course of 10 years
It is A. Clay ....sand is not it
Waves caused by fast moving motor boats can increase beach erosion...hope this helps!
After the macrophage fails the Helper T Cell stimulates the B cells if pathogen is extracellular and Cytotoxic T Cells if the pathogen is intracellular. Once the pathogen is killed the B Cells create Memory B Cells and the Killer T Cells create memory T Cells.