After this experiment, you should have a greater understanding of the scientific method. You can take this knowledge to the next level by designing other experiments pertinent to
environmental sciences. One major environmental concern of our time is soil salinity.
Soil salinity is a measure of salt content in soil and can result in degradation of soils and
vegetation, severely decreasing crop yields. The ions responsible for soil salinity are:
Na, K, Ca2+, Mg²+, and C1. High levels of salt in soil may result from human activities
such as irrigation, land clearing, aquaculture activities, and salting icy roads. Briefly
explain how you would use the scientific method to perform a lab experiment to study the
effects of soil salinity on plant growth. Make sure you use the concepts of experimental
design, hypothesis testing, data analysis, and interpretation of results. It may be helpful to
include the following in your experimental design. You may have to do some online
research for this question.

answer: - b cells

explanation: -

there are many types of white blood cells present in our body. one such class of white blood cells are the lymphocytes. the b cells belong to the lymphocyte class of wbcs. the b cells perform their action against the pathogen by producing specialised proteins called as antibodies. these antibodies are produced as and when the b cells encounter pathogens in response to the antigens present on the surface of the pathogen. these antibodies bind to the antigens present on the pathogen and then, target them for destruction by other cells of the immune system.

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

Schools are being forced to embrace computers. unlike their "digital immigrant" teachers, these students are "digital natives", born into a world where technology is an integral part of everyday life. almost every student has access to a multitude of computers, laptops and tablet devices. it would be crazy to assume an assignment would  notbe written on computer in this day and age.many schools now have a 1-to-1 computer policy, and many districts and states in the united states have mandated computers or ipads across the state for every student,  including los angeles, the second largest school district in the country.but the thing is, when they tried it in la, it wasn't the success they hoped for. that's because the tablets weren't used as much as they expected. rather, it appeared there was a gap between the digital native's love of technology and their use of it in the classroom.this conflicted relationship with computers is also underscored by much of the literature on education. it is also highlighted in professional development and conferences such as  edutech.