Dead zones are created by hypoxia and the bacterial decay of dead phytoplankton.
<h3>What are the effects of excess phytoplankton population?</h3>
The Chesapeake Bay, like many other bodies of water, is overrun with nutrients, which results in a type of pollution called eutrophication. Every spring, sewage treatment facilities, farms, and lawns release large amounts of nitrogen and phosphorus into the Bay. These nutrients fuel the growth of algae as the water warms up in the summer, resulting in blooms that deplete the water's oxygen content and create sizable "dead zones" where fish, crabs, and other aquatic life find it challenging to survive. During these times, some of the mud's surface layers and portions closer to the bottom may become anoxic, meaning there is no oxygen present at all.
Learn more about eutrophication here:
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Answer:
Chemical reaction had occurred and both the powders are different substances.
Explanation:
The correct answer is: C) A large number of phages are released at a time
Lytic cycle of a bacteriophage is one of the two life cycles of viruses, other being lysogenic. Lytic cycle can be divided in stages:
• Attachment-viruses binds to the receptor on the surface of bacterial cell, usually it uses tail for the attachment
• Entrance-virus injects its genome material (DNA or RNA) into bacteria cell
• Replication and protein synthesis-virus uses mechanism of bacteria to replicate its genome and produce proteins. As a consequence, a huge number of new viruses are formed
• Lysis- viruses express protein for the bacterial lysis (bacterial cell expand and burst) and hundreds of new phages are released.
Answer:
If a negatively charged ion is more concentrated outside the cell, the forces required to balance the chemical gradient would be directed <u>outwards</u>. Thus, the equilibrium potential for this ion would be <u>negatively</u> charged.
Explanation:
The resting membrane potential is normally due to small excess of negative ions inside of positive ions outside the cells.
The negative charges are attracted to the positive charges and they form a thin layer of negative inside and positive outside of the cell. The rest of extracellular and intracellular fluid remains normal.
If negatively charged ion is more concentrated outside the cell, then the forces will move outwards, in order to balance the gradient. Thus resulting in negative equilibrium potential (The potential at which no movement of the ion occur across the membrane)
