Explanation:
After repeated stimulation by antigen, B cells can make antibodies that bind their antigen with much higher affinity a process called affinity maturation. ... Thus, antigen stimulation greatly increases the antibody arsenal. Antibodies are proteins, and proteins are encoded by genes.
Biomass is the most used renewable source of energy in US in the year of 2009.
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Explanation:</u></h3>
In US, the country is very cold and use of wood and other plant products as chimney fuels, or in cooking and other purposes are very common. This is because being a temperate country, US has forests of conifers which are source of soft wood, ideal for burning.
Other sources of Biomass energy comes from the biogas, wood wastes, ethanol, municipal solid wastes and even biodiesel.
As a present day scenario, although coal and petroleum are still the most used fuels in US, but the use of renewable sources of energy has increased to twice the amount from 2010 to 2018.
Answer:
Advantages would be that, if it were light bulbs that were the output devices linked in parallel, if one bulb broke the others would continue going. Also, the brightness of the bulbs would be greater than the brightness of bulbs in series. Disadvantages are that there could be a risk of fire in some cases.
Explanation:
Answer:
Oxygen and Carbon dioxide
Answer: Heat produced from the electric ice cream maker killed the grass
Explanation:
The principle behind refrigeration of the ice cream maker is that
- air from the atmosphere is collected into the condenser,
- it is mixed with refrigerant gases like liquid nitrogen
- then it becomes cool, and freezes the prepared cream to become iced
- then, the HEAT generated during this conversion is ejected from the electric ice cream maker in form of hot air.
This hot air directed towards the grass will kill its living cells, thus it turns yellow over time
