Respuesta :
Answer:
Explanation:
Earthworms contain two main blood vessels: the dorsal vessel – running toward the head, and the ventral vessel – running head to tail. Ring vessels are the smaller vessels that are contained in each segment of the earthworm’s body and give blood to the organs. Earthworms survive by respirating.
Earthworm has an organ system level of organization.
What are the organ systems found in earthworm?
The organ systems found in an earthworm are:
- A complete digestive system.
- A closed circulatory system.
- An excretory system.
- A reproductive system
- A muscular system
- A nervous system
How does excretion occur in an earthworm?
Segmental nephridia helps in excretion
Are earthworms triploblastic?
Yes, earthworms are triploblastic, meaning 3 germ layers are present during embryonic development.
To learn more about embryonic development, earthworms, and organ systems here,
https://brainly.com/question/20992190
#SPJ2
