Answer:
Covalant bond is shown I the diagram.
Answer: B) A hurricane warning has been issued in the location.
Explanation:
This happens every time there is a natural disaster such as a hurricane is about to strike an area. Ideally people should be prepared well ahead of time (even if the threat of the disaster is not in view), but unfortunately the majority of the people do things last minute. So that explains why there's a sudden rush for basic supplies such as food, water, gas, etc. People stay closely tuned to the news for any updates on where the storm is going.
Choice A is false because people going on vacation wouldn't be demanding as much non-perishable food items. They would likely go for fast food, restaurant dining, or other perishable kind of food options. The term "perishable" means "it easily spoils". So this means you generally don't hold onto that kind of food for days or weeks or perhaps even months at a time. Canned food is a good example of non-perishable food items since it can last for years depending on certain items.
Choice C is false because there is no known way to prevent a hurricane. We know how they form and where they'll likely end up based on mathematical weather models, but we don't know how to stop them. We also don't know how to change their path either. So that rules out choice D as well.
Rhythmic contraction and relaxation of heart is called <u>The</u><u> </u><u>Cardiac</u><u> </u><u>Cycle</u> .
Answer:
The correct answer is - option B. the cell membrane is selectively permeable, which controls the movement of materials in and out of the cell by passive and active transport.
Explanation:
The cell membrane is the most essential cell organelle that is mainly responsible for the regulation of homeostasis of the cell. It acts as a barrier between the outer environment and cell components are enclosed in the cell organelles and cytoplasm by regulating the movement of the material in and out of the cell.
This movement can be active or passive transport depending on the nature of the material as it is a selectively permeable membrane.
The correct answer is - option B.