Because they Both work together to filter the water. Also without them Precipitation wouldn't occur and there wouldn't be any water cycle.
Meiosis 1 results in two homologous chromosomes being pulled apart creating two chromosomes that share the same DNA, Meiosis 2 results in two sister chromatids being pulled apart, creating four haploid cells.
The best answer is D.
Hormones are chemical messengers secreted mostly into blood and also extracellular fluid by specialized tissue of the endocrine system and affect the functioning of other tissues or cells.
Most hormones circulate in blood and come in contact with essentially all cells, but a particular hormone will only affect a limited number of cells, which are termed as target cells to that hormone.
A target cell responds to a particular hormone because it bears receptors for that hormone.
For example the red blood cells have receptors for the hormone called insulin which is produced by the pancreas. The red cells are able to take in glucose when their receptors bind to insulin.
Bb × bb = 2 Bb : 2 bb = 1 Bb : 1 bb
Thus, the phenotypic ratio would be 1 Dominant Phenotype : 1 Recessive Phenotype.
Ecosystems need producers because they are the start of the food chain.
Producers are consumed by first consumers, the second consumers and so on.
