) What is an Open Circulatory System and where would you find it? A.) Fluid Circulates through open ended vessels, found in invertebrates
B.) Fluid Circulates through open ended vessels, found in Humans.
C.) Fluid flows through open and closed vessels, found in Humans
D.) Fluid flows through closed vessels, found in invertebrates.

option a and d is the correct answer

i hope this u

plz mark as the brainliest answer

where is the scientific experiment?

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms