Answer:
Option A, accumulation
Explanation:
As we can see in the image, the water gets heated and convert its pahse from liquid to gas i.e from liquid water to water vapor. As it rises above, it condenses and converts from water vapor into liquid water. The liquid water then moves in the downward direction and collects at the base. This process of collection at base can be related to accumulation of running water.
Option A is correct
8. (F) Facilitated diffusion: For water to travel across the cell membrane at a substantial rate, the water molecules travel through protein channels known as aquaporins.
9. (S) Simple diffusion: While water molecules are polar, they are also very small. One fact not mentioned in the video is that some water molecules are able to squeeze directly through the phospholipid bilayer due to their small size.
10. (S) Simple diffusion: Charged ions are traveling through a cell membrane with the concentration gradient.
11. (A) Active transport: Cells lining the gut need to take in glucose, but at a certain time, the concentration of extracellular glucose is lower than the concentration already stored in the cells.
12.(F) Facilitated diffusion: At a certain time, glucose is in a high concentration outside of a cell and needs to travel through the membrane into the cell.
The above choices are made based on the basic definitions of active transport, facilitated diffusion and simple diffusion.
Active transport: The movement of the ions or molecules to a region having higher concentration across the membrane requiring the help of energy or enzymes is active transport.
Facilitated diffusion: This type of transport involves passive movement of the molecules or is a type of passive transport where the movement of the molecules takes place from higher to lower concentration region occurs with the aid of a carrier molecule such as a transport or carrier protein.
Simple diffusion: This process involves movement of ions or molecules from high concentration region to low concentration region through a semipermeable membrane.
Due to the limited supply of vaccinations, achieving herd immunity through efficient use of the vaccines will be a crucial instrument in the fight against COVID-19's widespread prevalence. Here, we examine a variety of vaccination tactics, including a cutting-edge targeted vaccination strategy (EHR), which offers a noticeably greater impact of vaccination on disease transmission than age-prioritized and random vaccination plans. Using high-fidelity individual-based computer simulations with Oslo, Norway as an example, we find that the EHR method achieves herd immunity at 48 percent of the population vaccinated with 90 percent efficiency, whereas the common age-prioritized approach needs 89 percent, and a community reproductive number in a setting where the base pre-vaccination reproduction number R = 2.1 without population immunity.
The typical age-prioritized technique requires 89 percent of the population to achieve herd immunity, while a population-wide random selection approach needs 61 percent. The EHR method achieves herd immunity at 48 percent of the people vaccinated with 90 percent efficiency. We find that age-based techniques struggle to generate herd immunity under most circumstances and have a far smaller effect on epidemic spread. Furthermore, even with perfect vaccinations offering 100% protection, immunizing children is crucial for developing herd immunity.
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D) if the tubes of the tracheal system in insects were longer, this would cause oxygen to reach the cells more slowly due to the distance factor
