The stomach is protected from the hydrochloric acid by
epithelial cells, which secrete a bicarbonate substance that covers the mucosa.
Since the bicarbonate solution is alkaline, it neutralizes the hydrochloric
acid produced by parietal cells and subsequently results in formation of water.
Importantly, the consistent secretion of the bicarbonate solution is what
protects the stomach from the strong acidic environment.
In covalence bonding, the two atoms forming the bond share the electrons between themselves, which is what creates the bond.
In ionic bonding, one atom sees that the other is lacking an electron so, given that it has an electron that it can afford to lose, it gives it to the other atom.
It helps improve spike stability by alternating between crops with deep roots and those with shallow roots. Pests are also put off because their food source keeps changing.
When DNA replication occurs, the DNA strand is being unwound, causing the DNA to be overwound tightly past the replication fork.
For example, If you have ever wrapped two strings around each other and then tried to pull part the middle of the string while holding the ends tight, the rest of the string past the place you're pulling the string apart becomes very tight and strained.
Topoisomerase is an enzyme that binds to the DNA and helps release some of that strain by unwinding the DNA past the replication fork.
That means the correct box is the leftmost one. Hope this helps:)
The mangroves trees help in holding the soil in place, they help in absorbing the energy of waves, and they help in filtering water and better the quality of it.
Mangroves are a kind of estuarine or coastal wetland, featured by the existence of salt amended shrubs and trees, which develops beside the coast in subtropical or tropical latitudes all around the world. Several of the mangroves forests can be determined by their dense tangle of prop roots, which make the trees seem to be standing on stilts above the water.
The mangroves safeguard the shorelines from destructing hurricane, storms, winds, and floods. They help in inhibiting erosion by stabilizing the sediments with their tangled root infrastructure. They sustain the clarity and quality of water, trapping the sediments and filtering pollutants arising from land.
