Valves ensure blood flows toward your heart. Vein valves work to bring the blood that flowed down via arteries back up to your heart.
Fats <span>store energy, provide insulation and protect our vital organs. Phospholipids are an essential component of the cell membrane and play a key role</span> in controlling the entry and exit of molecules and ions. Waxes are produced by many organisms as a protective layer against the outside environment, and can be used for example providing waterproofing to bird feathers. Steroids have various functions for maintaining homeostasis within organisms.<span> </span>
the correct answer is C) DNA contains the base uracil, while RNA contains the base thymine instead
Answer:
They are important areas where oxygen can pass through to the developing brain in infancy
Explanation:
Fontanel is a structure that is present in the skull of human infants and it compromises of soft membranous gaps known as sutures.
The function of the fontanels is as follows:
1. To allow stretching of the neurocranium and also allow its deformation during the rapid expansion of the brain.
2. To flex the skull of the infant so that it can easily pass through the birth canal at the time of delivery.
There are 6 fontanels present in the brain -
A. Present at the sides of the head.
B. The anterior fontanel.
C. The posterior fontanel.
D. lateral fontanels.
