asked 223k views
3 votes
Which of the following animals has a single-loop closed circulatory system:

a. fish
b. frog
c. human
d. crocodile

2 Answers

2 votes

Answer:

A. fish

Step-by-step explanation:

plato

answered
User Reyaner
by
8.4k points
4 votes
(A) ? I'm guessing...because a fish's life a vary simple...
answered
User CraigP
by
8.6k points
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