Hmm i would say meteorites and asteroids <span />
The brain can be considered as a nucleus. The brain controls all our bodily functions.
The members of the autosome pairs are truly homologous; that is, each member of a pair contains a full complement of the same genes (albeit, perhaps, in different allelic forms). The sex chromosomes, on the other hand, do not constitute a homologous pair
The correct answer is defecation.
<span>Soil productivity is the capacity of a soil, in its normal environment, for producing a plant. A productive soil is a soil in which the chemical, physical, and biological conditions are favourable for plant growth. All organisms, including animals, contribute to the soil by adding organic matter and chemicals via their bodies (decomposition), excrement (through the urinary and digestive system) and food residues.</span>