Summative Assignment for Biology 11 (SBI3U)This summative assignment will be worth 10 points for all students and will cover the entire length of the Biology 11th Grade Course (SB3U), comprising...

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Answered Same DayJan 29, 2023

Answer To: Summative Assignment for Biology 11 (SBI3U)This summative assignment will be worth 10 points for...

Jyoti answered on Jan 30 2023
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Summative Assignment for Biology 11 (SBI3U)
Part I – Diversity of living things
1. Taxonomy (K-4; T-2; C-4; A-3)
· Superregnum:     Eukaryota
· Regnum:     Animalia
· Subregnum:     Bilateria
· Infrakingdom:    D
euterostomia
· Phylum:     Chordata
· Subphylum:     Vertebrata
· Classis:     Mammalia
· Subclassis:     Theria
· Ordo:     Cetacea
· Subordo:     Odontoceti
· Familia:     Delphinidae
· Subfamilia:     Capromyinae
· Genus:     Tursiops
· Species:     Tursiops truncatus (Montagu, 1821)
2. Taxonomical diagnosis (K-3; T-4; C-4; A-4)
Phylum Chordata
1. Presence of Notochord: All chordates possess, at least at some point in their life, an internal axial skeletal structure in the form of a stiffened but flexible rod called as the notochord. This structure is positioned immediately ventral to the central nervous system (CNS) and dorsal to the gut, and in more primitive chordates stays throughout the animal's life. Though, in advanced chordates (subphylum Vertebrata) the notochord is wholly or partly substituted by a backbone or vertebral column, composed of a series of separate bones, the vertebrae/spinal column/backbone.
2. Possession of gill slits or pharyngeal clefts: Gill slits or pharyngeal clefts are present in the chordates which advance in the embryonic chordate as a sequence of paired evaginations of the lateral pharyngeal walls. The development is accomplished by parallel invaginations of body wall, which happens due to the cessation of intervening structures. As a result, the clefts come to open to exterior. Most primitive aquatic chordates have them as modification appearing as feeding structures. Furthermore, more advanced aquatic forms have them as respiratory structures.
3. Hollow dorsal nerve tube: At some point of their lifespan chordates have the hollow dorsal nerve tube. The various segmentations of the nerve tube can generally be an expanded anterior region, the brain, and a spinal cord. The spinal cord ranges the entire length of the species. A boxlike skeletal structure which is called the cranium protects the brain.
Classis...
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