<span>The answer to this question would be: Autosomal recessive gene.
P</span><span>henylketonuria is an inborn error of metabolism that caused by defect gene that inherited by autosomal recessive. That means the disease is not transmitted by contact as it wasn't caused by pathogens.
It needs two recessive genes to be expressed so the father and mother must have at least one defective gene.</span>
Answer:
optimum temperature
Explanation:
the embryological and anatomical conditions for human reproduction depends on hormones and enzymes, these enzymes are protein in nature so any alternation in temperature will cause these proteins to be denatured hence compromising reproduction processes in humans.
Its called homeostasis, the regulation in temperature which can be exhibited thorugh sweating, panting, etc. It helps taking the heat out and all body waste away to regulate the temperature inside an organisms body.
Green plants, algae, and some bacteria
Answer: Mutualism
Explanation: When two animals help one another in a beneficial way for both parties then it is considered mutualism.
