Answer:
B
Explanation:
Bulk flow is an energy-requiring mechanisms, whereby water and solutes move through the cell due to its pressure gradient. This process is much faster when compared to osmosis and diffusion.
Answer: Option D.
Technician A.
Explanation:
Oil residues on hoses, it's components or fittings indicate an area where refrigerant may be leaking.
An oil spot on the A/C hose is an indication of refrigerant leak in the system. Good oil levels are important for the system good performance. If the level of oil is to low, the compressor will not have lubrication and if it is too high, the heat exchange will affected which will lead to poor air conditioning performance. If a leak is formed on A/C hose, an oil spots that collect dirts will disappear. An refrigerant leak detector will help verify if there is no leak in the system.
So Technician A is correct.
All living things need to have cells before they are said to be living. this is because the cell is the basic unit of life.
Hey there!
The correct answer is: C) are usually more rich in species<span> biodiversity than </span>
<span>Climax
communities are usually more rich
in </span>species biodiversity than communities that are undergoing primary succession. They contain a mature ecosystem as they have had time to gather species that couldn't live through the early stages of an ecosystem.
<span>Thank you! </span>