Earth''s magnetic orientation is locked into the rock when the rock cools
The most leaching of minerals occurs from the Horizon A(the top layer) into the horizon B(the sublayer) The zone B which is commonly referred to as the subsoil layer is the zone of accumulation where rain water percolating through the soil from the top layer and it is precipitate within the subsoil(horizon B)
B. Defecation is a process that uses a lot of water. To compensate for this the large intestine absorbs water back into the body before having waste leave the body.
Answer:
the 1rst and 2nd
Explanation:
all fertile individuals can breed with one another and individuals vary genetically
Having two copies of the mutated genes cause sickle cell anemia, but having just one copy does not, and can actually protect against malaria - an example of how mutations are sometimes beneficial.
The majority of mutations have neither negative nor positive effects on the organism in which they occur. These mutations are called neutral mutations. Examples include silent point mutations. They are neutral because they do not change the amino acids in the proteins they encode.
Hope this helped :)
