In an area deficient in nitrogen, why would a plant, such as a legume, have an advantage over another type of plant? A- It reproduces at a much faster rate when exposed to limited amounts of nitrogen in the air

B-It is an economically profitable crop.

C-It can survive for longer periods of time in arid areas due to its extensive root structure.

D-It is able to pull in and use nitrogen from the atmosphere through the process of nitrogen fixation

What in scientific term why the salty popcorn causes this thirst

Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?

What could happen if two base pairs on a strand of dna or switched