Answer:
The action potential is conducted into a skeletal muscle fiber by, transverse tubules.
Answer: C) a tube of cartilage (surrounding the notochord) with dorsal projections on both sides of the spinal cord.
Explanation:
The hagfish has a skeleton which do not consists of bones instead it consists of cartilage. The cartilage forms the part of the tentacles, tongue, nasopharyngeal duct, and soft palate. The tube of cartilage forms the surrounding of the notochord. It also has an attach with the dorsal projections on both sides of the spinal cord.
The ear has the tinest bones in the body. There are three bones in the ear. Hopes this helps you.
Identical twins don't have the exact same chromatic make-up, the chances of a meteor hitting the earth within the next 60 seconds are higher than someone having the same chromatic make-up, hope this helps
Answer:
The nitrogenous bases present in DNA are purine (adenine or guanine) and pyrimidine (cytosine or thymine). Uracil is absent from DNA. Uracil is present as pyrimidine base in ribonucleotides which are components of RNA.
