What surrounds animals cords?

1. What kind of animal is a cord?
2. What are the 5 characteristics of chordates?
3. What is the hard outer covering of an animal called?
4. What benefit do vertebrae around the nerve cord provide?
5. What are birds classified as mammals or reptiles?
6. Are mammals a species?
7. What are pharyngeal slits?
8. What is tubular nerve cord?
9. What coverings do animals have?
10. What are reptiles bodies covered with?
11. What is the body covering of a goat?
12. What Transformers the spinal cord in vertebrates animals?
13. Which part of the brain stem connects with the spinal cord?
14. What is the name of the bones that protect the spinal cord?

What kind of animal is a cord?

The Chordata and Ambulacraria together form the superphylum Deuterostomia. Chordates are divided into three subphyla: Vertebrata (fish, amphibians, reptiles, birds, and mammals); Tunicata or Urochordata (sea squirts, salps); and Cephalochordata (which includes lancelets).

What are the 5 characteristics of chordates?

Characteristics of Chordata. Animals in the phylum Chordata share five key chacteristics that appear at some stage during their development: a notochord, a dorsal hollow (tubular) nerve cord, pharyngeal gill arches or slits, a post-anal tail, and an endostyle/thyroid gland (Figure 2).

What is the hard outer covering of an animal called?

An exoskeleton is the hard outer covering that supports and protects some animals without backbones.

What benefit do vertebrae around the nerve cord provide?

The major function of the vertebral column is protection of the spinal cord; it also provides stiffening for the body and attachment for the pectoral and pelvic girdles and many muscles. In humans an additional function is to transmit body weight in walking and standing.

What are birds classified as mammals or reptiles?

Snakes, lizards, turtles, crocodilians, and birds are reptiles. Like all vertebrates, reptiles have bony skeletons that support their bodies. Scales help prevent reptiles from losing water through their skin.

Are mammals a species?

Around 6,400 extant species of mammals have been described. The largest orders are the rodents, bats and Eulipotyphla (hedgehogs, moles, shrews, and others).

What are pharyngeal slits?

Pharyngeal slits are filter-feeding organs found in vertebrate chordates. Pharyngeal slits are repeated openings that appear along the pharynx caudal to the mouth. With this position, they allow for the movement of water in the mouth and out the pharyngeal slits.

What is tubular nerve cord?

Medical Definition of nerve cord

: the dorsal tubular cord of nervous tissue above the notochord of a chordate that in vertebrates includes or develops an anterior enlargement comprising the brain and a more posterior part comprising the spinal cord with the two together making up the central nervous system.

What coverings do animals have?

Just like us, animals have on whatever covering will work best for their environment. The are basically four types of animal covering: fur, feathers, scales, and shells and exoskeletons.

What are reptiles bodies covered with?

Reptiles are air-breathing vertebrates covered in special skin made up of scales, bony plates, or a combination of both. They include crocodiles, snakes, lizards, turtles, and tor- toises. All regularly shed the outer layer of their skin.

What is the body covering of a goat?

They can vary from simple fabric covers, to specially fitted garments which wrap securely around the body and neck, while still allowing the animal free movement. Most goats develop a thick coat of fur in the fall months, but some types of goats do not, so need external protection.

What Transformers the spinal cord in vertebrates animals?

These are only found in the phylum Chordata, a group of animals that includes humans. Complete answer: The vertebral column develops from a flexible rod formed of a material similar to cartilage known as Notochord. They are present at the embryonic stage of vertebrates and then they transform to the vertebral column.

Which part of the brain stem connects with the spinal cord?

The medulla oblongata is the lower half of the brainstem. It controls autonomic functions and connects the higher levels of the brain to the spinal cord.

What is the name of the bones that protect the spinal cord?

Vertebrae: The spine has 33 stacked vertebrae (small bones) that form the spinal canal. The spinal canal is a tunnel that houses the spinal cord and nerves, protecting them from injury. Most vertebrae move to allow for a range of motion. The lowest vertebrae (sacrum and coccyx) are fused together and don't move.