<span>How many openings are in the digestive system of flatworms? Answer: 1
Flatworms digestive system is called 2-way which mean the same opening is used for eat and removing waste. That's why it only has one opening. Human system is one way since we eat from the mouth and remove waste from the anus.</span>
Answer:
Parasitism is a relationship between two different organisms where one of the organisms actually harms the other through the relationship. The organism that is harming the other one is called a parasite. Examples of Parasitism: Fleas or ticks that live on dogs and cats are parasites.
Explanation:
Answer:
e
Explanation:
<em>The main reason such an elaborate device was used would be to eliminate any element of bias by the researcher.</em>
It is important to eliminate biases when taking measurements so as to ensure the accuracy of the data and the overall outcome of the experiment. <u>If a simpler device had been used in which the researcher manually records the length of the bones, it is possible to knowingly or unknowingly introduce biases or random error into the experiment which will impact the integrity of the data and the outcome of the experiment.</u>
The correct option is e.
I have not learned that yet i wish i could help so sorry though good luck
