23.4k views
3 votes
Most arthropods and some mollusks and tunicates have _____ circulatory systems, which means fluid transporting nutrients and oxygen flow directly into internal organs. a. closed b. nonexistent c. open

User Heracek
by
7.9k points

2 Answers

2 votes

answer is (OPEN)

Step-by-step explanation:

User Dmon
by
8.5k points
3 votes
Arthropoda and molluscs have open circulatory systems - meaning haemolymph (Their equivalent to blood) directly bathes the tissue, and isn't enclosed in blood vessels, as seen in a closed blood system, as in humans for example.
User Glaucus
by
8.4k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories