El Nino is caused by water at the equator near the Eastern Pacific ocean becoming warm. This warmness causes the water to vaporize and rise up. Similarly, the water also makes the atmosphere warm, allowing the moisture-rich air to develop into fierce rains, ultimately causing the increased precipitation during that year. The El Nino year 1997 is a famous example of this event.
-The number of B cells producing the antibody is proportional to the concentration of that antibody.
-On day 16, one out of 100000 B cells are specific for antigen A
\frac{1}{100000} = 1 x 10⁻⁵ B cells
- on day 16, Antibody concentration is 2 × 10¹= 20 Antibodies
- on day 36, antibody concentration 8 × 10³.= 8000
20 antibodies ------------ 1 x 10⁻⁵ B cells
8000 antibodies--------------x
x= (8000 x 1 x 10⁻⁵)/ 20
x= 4x10⁻³ or 1 in 250 are <span>B cells specific for antigen A</span>
Saturated?!
Hope it helps!:))))
There are two types of cell, prokaryotic (bacteria) and eukaryotic (animal, plant, fungi and protoctista (unicellular organisms)). Prokaryotes have no nucleolus – the DNA isin the cytoplasm, and it can from small circular strands of DNA called plasmids. Eukaryotic cells all have their DNA enclosed in a nucleus.
Answer:
oxygen te digo por qué ya Ise esa bro