Question

True or False. Correct the False Statement
1.Vertebrates are animals without a backbone. ​

Answer 1

Answer:

true

Explanation:

vertebrates are animal without a back bone

Answer 2

The statement is false. Vertebrates are animals with backbones.

• The muscular system of vertebrates is characterised by bilaterally paired masses and a central nerve system partially encased within the backbone.
• The vertebrate has a distinct head, a tubular brain that is differentiated, and three pairs of sense organs (nasal, optic, and otic).
• The trunk and tail parts of the body are separated.
• A high metabolic rate is indicated by the existence of pharyngeal apertures with gills.
• A segmented muscle mass flanks a well-developed notochord surrounded in perichordal connective tissue, with a tubular spinal cord in a connective tissue canal above it.
• On the dorsal root of the spinal nerve, a sensory ganglion forms, and segmental autonomic ganglia form below the notochord.
• A massive, bilateral body cavity (coelom) with confined viscera fills the trunk region, and this coelom extends anteriorly into the visceral arches.
• An oesophagus, which runs from the pharynx to the stomach, and a gut, which runs from the stomach to the anus, make up the digestive system.
• A pericardial sac surrounds a distinct heart that is anteroventral to the liver.
• In most vertebrates, a basic pattern of closed circulatory vessels has been conserved.
• The bilateral kidneys are located retroperitoneally (dorsal to the main body cavity) and are responsible for blood maintenance and excretion.