D. Personal educational background
Answer:
Bone remodeling keeps bones strong as osteoclasts break down bone and osteoblasts rebuild it. This process replaces as much as 18% of bone each year. Bone recycling helps the body to regulate blood calcium.
Explanation:
Bone tissue is a type of specialized connective tissue that is in constant change and renewal due to the activity of its cells. Besides serving the composition of bones and, therefore, the skeletal system, it also functions as a calcium reservoir that can be used when needed.
Answer:
no
Explanation:
since females have have to x's and no y's
<span>The 4 categories of macromolecules include carbohydrates, proteins, lipids, and nucleic acids. Carbohydrates (grains and vegetables) are the largest group at the base of the pyramid, proteins (milk, poultry, eggs, nuts) follow up the pyramid while lipids (fats and oils) are the least amount at the summit of the pyramid. </span>
<span>
</span><span>The aim of the pyramid is to recommend ideal rations for a healthy diet. Carbohydrates provide most of the energy needs for the days’ activities hence taking the largest portion. Proteins are used in building muscles, f0r nutrition, and body’s immunity hence required in lesser amounts compared to carbohydrates. Lipids help the body store energy since they have thrice as much energy as carbohydrates.They also a constituent of cell membranes and also help deliver vitamins. They are required in the least amount to avoid obesity and related illnesses such as cardiovascular <span>diseases</span></span>