Th memory cells differ from the effector cells in that the memory cells live longer. Two types of cells are produced by the clonal selection, these are the effector cells and the memory cells. Effector cells are relatively short lived activated cells that defend the body in an immune response. Effector B cells are called plasma cells and secrete antibodies, and activated T cells include cytotoxic T cells and helper T cells, which carry out cell-mediated responses. The production of effector cells in response first time exposure to an antigen is called the primary immune response. The memory produced at this time and only become active in case of a re-exposure to the same antigen that stimulated their formation.
Answer:
a) Grow plants, Reduce use of electronics, dont waste natural resources like water... just illustrate these points
b) You can make posters for awareness with the help of your freinds in your club!
c) You can raise a campaign or event in your school to raise awareness of sustainable development in energy uses.
a) Solar Panels, Wind Mill, Dams, Hydroelectricity
b) Use less electronics, Dont waste natural resources, Grow plants, support globalisation warming decreasing campaigns, etc
c) Reduce - use less plastic bags
Reuse - reuse the plastic bags when going outside or nay other task
Recycle - throw trash in recycle bins
d) Grow plants & support reforestation/afforestation campaigns
I DONT KNOW FOR PART 3 SORRY
Explanation:
<span>Position C is the answer.</span>
Producer I believe because producers have the most energy at the bottom of the pyramid
A.) Manufacturing plants :)
It can technically be a. since manufacturing plants are caused by humans since we were the ones who built and are currently using them. Automotive manufacturing plants are primarily facilitated for assembling vehicles with spot welds, and changes to high strength steel grades have had little effect on changing the industry’s joining preferences. However, while the basic technology used for spot welding is little changed, improvement in weld controls and process enhancements has extended the ability to successfully spot weld steel grades with higher carbon equivalents in high volume processes common in the industry. And the biggest release of greenhouse gases are burning fossil fuels which is what manufacturing plants do ALL the time.
It can’t be b. because volcanoes are formed by eruptions of lava and ash when magma rises through cracks or weak-spots in the Earth's crust. A build up of pressure in the earth is released, by things such as a plate movement which forces molten rock to exploded into the air causing a volcanic eruption. So humans can’t cause this naturally occurring event to happen.
It can’t be c. because the solar cycle affects activity on the surface of the Sun, such as sunspots which are caused by the Sun's magnetic fields. As the magnetic fields change, so does the amount of activity on the Sun's surface. One way to track the solar cycle is by counting the number of sunspots.
It can’t ALWAYS be d. Technically there is a possibility since most wildfires are caused by humans. Human-caused fires result from campfires left unattended, the burning of debris, equipment use and malfunctions, negligently discarded cigarettes, and intentional acts of arson. But sometimes, it can have the possibility of nature which a. doesn’t have because there have been wildfires due to lightning strikes.
So the best answer with most evidence to support it is a. manufacturing plants :)