<span>The respiratory system, circulatory system, muscular system, and nervous system.
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Answer:
Protists were traditionally subdivided into several groups based on their physical similarities to the "higher" kingdoms of Animals, Plants, and Fungi. For example, the unicellular, “animal-like” protozoa, the “plant-like” algae, and the “fungus-like” slime molds and water molds are all protists.
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Adaptations increase the probability of an organism surviving and reproducing in a specific environment.
Three reasons for cell division are:
.Growth
. Cell Replacement
. Regeneration
. Asexual Reproduction
