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Zorluk: Çok zorEvolutionary Trends and Adaptive Features in Organisms

Match each organism in List I with its corresponding evolutionary adaptive feature and organ system complexity in List II.

  • Dugesia (Flatworm)Protonephridial flame cell system for osmoregulation combined with cutaneous diffusion across an acoelomate body plan lacking a circulatory system.
  • Pheretima (Earthworm)Segmental metanephridia paired with a closed circulatory system containing hemoglobin dissolved in plasma across a true coelom.
  • Periplaneta (Cockroach)Uricotelic excretion via Malpighian tubules coupled with a chitin-lined tracheal system transporting gases directly to tissues.
  • Tilapia (Bony Fish)Two-chambered heart delivering venous blood to filamentous gills in a single-circuit respiratory-circulatory pathway.

Cevap

Dugesia matches protonephridial flame cell system with acoelomate diffusion; Pheretima matches segmental metanephridia with closed circulatory system; Periplaneta matches uricotelic Malpighian tubules with tracheal gas transport; Tilapia matches two-chambered heart with single-circuit gill circulation.
Each organism correctly pairs with its characteristic excretory and respiratory/circulatory evolutionary adaptation: Dugesia utilizes flame cell protonephridia without blood vessels; Pheretima utilizes segmental metanephridia and closed blood vessels; Periplaneta utilizes Malpighian tubules with tracheae; and Tilapia utilizes a two-chambered heart powering single-circuit gill respiration.

Adım Adım Çözüm

1
Analyze the structural organization of flatworms (Dugesia).
Dugesia is a triploblastic acoelomate utilizing flame cells for excretory osmoregulation without a specialized cardiovascular system.
Demonstrates the primitive invertebrate condition of cell-to-cell diffusion and protonephridial filtration.
2
Analyze the anatomical advancement of annelids (Pheretima).
Pheretima features true coelomic metamerism, excretory metanephridia, and closed circulation.
Evolution of fluid-filled coelom supporting compartmentalized segmental excretion and vascular transport.
3
Examine terrestrial arthropod adaptations in insects (Periplaneta).
Periplaneta exhibits Malpighian tubule excretion of uric acid and a tracheal direct-gas delivery network.
Adaptation to terrestrial dry environments requiring water conservation and high metabolic gas exchange.
4
Evaluate vertebrate circulatory and respiratory trends in aquatic teleosts (Tilapia).
Tilapia possesses a single-circuit vascular loop driven by a two-chambered heart to filamentous branchial gills.
Vertebrate evolution of myogenic chambered hearts progressing from two-chambered single circulation to double circulation.

Anahtar Kavram

Evolutionary progression of respiratory, circulatory, and excretory organ systems across invertebrate and vertebrate lineages
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Konular

Evolutionary Trends and Adaptive Features in Organisms

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