Answer:
Genes come in different varieties, called alleles. Somatic cells contain two alleles for every gene, with one allele provided by each parent of an organism. However, an allele that is hidden, or not expressed by an organism, can still be passed on to that organism's offspring and expressed in a later generation.
Explanation:
Answer: This pattern, called atmospheric circulation, is caused because the Sun heats the Earth more at the equator than at the poles.
Explanation:
Answer:
It’s secreted by stomach cells called chief cells.
Explanation:
it’s quickly activated by hydrochloric acid to become pepsin. Pepsin is the active form of pepsinogen and it breaks down or metabolizes protein into smaller building blocks called amino acids and peptide fragments.
Answer:
Structure. The IVC is formed by the joining of the left and right common iliac veins and brings collected blood into the right atrium of the heart. It also joins with the azygos vein (which runs on the right side of the vertebral column) and venous plexuses next to the spinal cord.
Source: common iliac vein; lumbar veins;