Answer:C) Traits like this are determined by the genes passed from parents to their children.
Explanation: Every trait in an organism is controlled by a pair of gene. A gene that controls a trait usually have two alleles. During fertilization, for every pair of gene one allele is inherited from the mother while the other allele is inherited from the father and the two alleles come together to form a pair of gene. Every trait in an organism is determined by genes that are passed from the parents to the offsprings.
A major factor in determining the mode of nitrogen excretion is the availability of water in the environment. Generally, aquatic animals excrete mostly ammonia, whereas terrestrial animals excrete either urea or uric acid.
septum is present between the two ventricles and separates the oxygenated and deoxygenated blood. hence if it gets ruptured then the two blood will mix up. thanks
