Answer: covering crops
Explanation:
such as vetch, rye and clover, are excellent plants for erosion control. These hardy easy to grow plants send out nets of roots that help hold topsoil in place while also reducing competitive weeds. When tilled back into the soil, they increase the nutrient density as they compost.
A is correct. The amount of space something takes. You always put cubed because it's always a 3-D shape for volume. Hope this helps! :)
Answer:
C)
DNA is semi-conservative. The two strands of nucleotides separate. It
produces two copies of the original DNA molecule, each of which contains
one of original strand, and one new strand.
Answer:
Although the evidence for a protective role of B cells and antibodies has been noted, the direct contribution of CD4+ T cells in protection against blood stages beyond a helper function for CD4+ T cells has mainly derived from rodent models of malaria.