Answer:
B. Excretory system
Explanation:
<em>Because the excretory system is made to remove urine which consists of waste materials such as excess salts and water. The kidneys are present in it as well. If there is too much water in the body the excretory system will produce urine with higher water concentration so whiteish urine will be produced and if there is a low amount of water in the body the excretory system will produce urine with lower water concentration so yelloish or greenish urine will be produced</em>
<span>The fertilization of a female egg cell with a male sperm cell is also referred to as Conception (option D)
This process is also known as generative fertilization, conception, syngamy and impregnation. It is the union of gametes to begin the development of a new individual or organism.
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I believe it is the retina that changes shape to focus on distant objects.
Answer:
a biological community of interacting organisms and their physical environment.
Explanation:
Acetylcholine..
hope it helps
