Ater 4. The information below describes a relationship between a type of fish known as a goby and a species of blind shrimp.
The shrimp digs a hole that provides shelter for itself and the goby fish. The goby fish lives at the opening to the hole and watches for predators. When a
predator swims by, both organisms quickly move farther into the hole for safety
The relationship between these two organisms is best described as

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

b.

the accuracy of the data.