How to write conclusion for kingdom classification
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Answer:
Kingdom Animalia has evolved vastly in its complexity, starting with simple sponges, and ending with us. These organisms have been constantly growing in complexity and physical adaptations, and I will now explain exactly what these adaptations are that we have learned throughout this course.
Porifera is the first phylum in Kingdom Animalia, and is by far the most simple. Sponges do not contain any real tissue, but are rather just a series of cells living together. These organisms are sessile filter feeders that have changed very little since they evolved. They reproduce sexually through internal fertilization with eggs, sperm, and larva, as well as asexually through budding via gemmules. They are completely reliant on water, which they use for circulation, respiration, and excretion. They have no body symmetry and no germ layers.