<span>Flatworms possess excretory organs known as nephridia. Specifically as annelids, flatworms possess a variant known as metanephridia. This variant is defined by a cilia-lined funnel that opens into a coelom that empties through a anus to the outside of the organism.</span>
Answer:
Diffusion is the movement of molecules from a region of higher concentration to a region of lower concentration down the concentration gradient.
Answer:
the variability in neuroticism is due partly to genetic variability in the population.
Explanation:
In population genetics, heritability (h) is defined as the amount of the phenotypic variation attributable to genetic factors rather than environmental factors.
Mathematically, h is calculated by using the following equation: H2 = Vg/Vp, where Vg is the variation in genotype, while Vp is the variation in phenotype.
An H value close to zero (0) indicates a very low heritability (i.e., the phenotype depends on the environmental differences between individuals), while an H close to one (1) indicates very high heritability (i.e., the phenotype is firstly dependent on genetic factors).
Answer:
A. The rates of birth and immigration were balanced by the rates of death and emigration.
