Which of the following groups of bones are part of the axial skeleton?

RNA uses the nucleotide uracil instead of thymine, which is found in DNA. The other statements are true of both RNA and DNA.

Fascia is connective tissue that encloses individual muscle fibers.

Chromosomes carry genetic information in the form of DNA. Each gene is formed of sequences of DNA and carries information for characteristics of organisms. A chromosome is made up of DNA and protein, so chromosomes cannot be considered the building blocks of DNA. DNA is not formed by a sequence of chromosomes. Chromosomes are made up of DNA. Chromosomes contain genes. Genes do not contain chromosomes.

The joining of two reactants (2Li + Cl2) to form one product (2LiCl) is a synthesis reaction.

Ca+ has nineteen electrons. All the other ions have eighteen electrons.

The number of protons in an atom’s nucleus is also the atomic number of the atom. In this case, we are told that there are 45 protons present and that the atomic mass is 64; however, when looking for the atomic number, we do not need the atomic mass. Consequently, the atomic number is 45.

The pulmonary artery carries blood from the right ventricle to the lungs, where it can pick up oxygen. Therefore, oxygen-depleted blood is carried in the pulmonary artery. This is contrary to most arteries, which typically carry oxygen-rich blood. Once the blood is oxygenated in the lungs, it returns to the heart at the left atrium through the pulmonary vein.
Once blood has been oxygenated and returns to the left side of the heart, it can be ejected by the left ventricle throughout the body via the aorta.
The vena cava returns oxygen depleted blood to the right atrium.