Explain why the development of tissues is an evolutionary ad

Explain why the development of tissues is an evolutionary advancement. Cite some animals studied today in making your argument Which live animal studied today had radial symmetry? Why is this type of symmetry adaptive for this animal? Having three embryonic germ layer, is associated with which type of symmetry? You exhibit cephalization (centralization of sensory structures in anterior end). Explain the significance of this feature and describe a to related to movement that is correlated with this feature. What is the value of a body cavity (pseudocoelom or coelom)? How does a digestive tract differ from a gastrovascular cavity? What is the advantage of a digestive tract in contrast to a gastrovascular cavity? What is the advantage of the cnidarian gastrovascular cavity (and extracellular digestion) relative to phagocytosis (and intracellular digestion) as observed in the sponges?

Solution

1: Tissues are the group of cells of common origin that are specialised to perform specific function. This makes the orgnaism having tissue advance as it shows the division of labor to perform the function effeciently. For ex: non vascular plants such as bryophytes do not have vascular tissues for condution of food and water. They perform this function by all of their common parts. On the other hand, the vascular plants such as gymnosperms and angiosperms have specialised tissues for transport of water and food in the plant body. These vascular plants exhibit evolutionary advancement as they are able to survive on the land as compared to the non vascular plants.