5/6/2023 0 Comments Protostome blastopore becomesRange of thermoneutral D Range of tolerance Performance $ GR RG Environmental gradientemperature) Invertebrates 37 Which of the following is correctly associated with sponges? A Amoebocytes B True tissues Blastocoel D. What ecological concept is represented in the diagram to the right? 5 Survival G-Growth Reproduction Optimal A Thermoneutral zone B. The term 'deuterostome' alludes to one of the groups distinguishing developmental characteristics. Echinoderms and chordates make up the majority of deuterostomes. ![]() This is the next major distinction between deuterostomes and protostomes the protostomes form the mouth from the primary cavity and the anus second. This temporarily connects the digestive cavity with the cavity of the nerve tract. Anus develops from the blastopore Both B and D 36. The blastopore, or orifice at the bottom of the growing gastrula, becomes the anus in deuterostomes, whereas it becomes the mouth in protostomes. What is fate of blastopore In deuterostomes, the first cavity formed by the blastopore ends up as the organism’s anus, while the mouth is formed secondarily on the opposite side. In the process of development among some animals (protostomatic), the blastopore becomes a mouth or forms both a mouth and an anal opening in others (deuterostomatic) an anal opening or nerve intestinal canal is formed in place of the blastopore. In the deuterostomes ('second mouth': cf. Spiral arrangement of cells B.Radial arrangement of cells C. The majority of coelomate invertebrates develop as protostomes ('first mouth') in which the oral end of the animal develops from the first developmental opening, the blastopore. You are looking at a frog egg undergoing early cleavage What would you expect to see? A. Which of the following organisms would have the highest surface-to-volume ratio? A. blastopore becomes anus, radial and indeterminate cleavage 34. In most phyla, the blastopore becomes the mouth animals with this type of development are called protostomes, meaning 'first (or primary) mouth'. blastopore becomes mouth, radial and indeterminate cleavage oblastopore becomes mouth spiral and determinate cleavage D. blastopore becomes anus, spiral and indeterminate cleavage B. Which of the following is descriptive of protostome? A.
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