Answer:
D. digestive and reproductive
Explanation:
Living system can be defined as the internal systems of organisms and how materials circulate within organisms.
Generally, these living systems are self-organized life forms and are known to be very much interactive with their surroundings or environment. Also, living systems are dependent on the flow of information, matter and energy at various levels.
Some examples of living systems in organisms are respiratory system, nervous system, digestive system, and circulatory system.
Additionally, living systems comprises of the following components; cells, organs, muscle, tissues, blood, etc.
When a woman is pregnant, the part of her body systems that are involved in providing needed nutrients to her unborn child are the digestive and reproductive systems. During pregnancy, it is very important that mothers have good nutrition so as to keep themselves and their baby healthy.
The placenta which is normally formed during the embryonic stage, helps to take water, oxygen and nutrients from the blood, filter out any harmful substance and then transports them to the unborn baby through his or her umbilical cord.
