ully exist on Earth today.Why is ths mals with derived traits not completely rep

Question

ully exist on Earth today.Why is ths mals with derived traits not completely replaced Si éoe ones with ancestral traitst derived taitun E your answer cestral ancestral traits? Use examples from rom the lab to illustrate e in biology is the relationship between form and function aior the lustrate the relationship of form and function f ing examples from the organisms studied. organisms. Select one of the major characteristics from Table L and or this characteristic us he cannot identify in the lower beach sand of Jekyll Island. What are some questions that he should ask to help determine the phylum ofthe 7. Will a student in the Coastal Biology course, has found an animal

Explanation / Answer

Ans. Consider the case of a Grasshopper.

1) Grasshopper is segmented in shape with bilateral symmetry.

2) Grasshopper is found in terrestrial habitat.

3) The body cavity of grasshopper is coelomate

4) Grasshopper uses the organ trachea for respiration.

5) The respiratory organs of the grasshopper are located in thorax and abdomen.

6) There are openings on the sides of the grasshopper abdomen known as spiracles.

7) The spiracles open and close which results in the gases to penetrate the exoskeleton without water loss,

8) Grasshopper belongs to phylum arthropoda.

9) Grasshopper posses open circulatory system.

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