How does waste get to the excretory system

2 answers:

4 0

The Excretory system is the system the body uses to get rid of all its wastes, and involves the lungs to remove carbon dioxide from the body, the large intestine where solid wastes pass through, and the kidneys which removes a lot of the liquid waste. The wastes then travel through the ureters to the urinary bladder.

NikAS [45]4 years ago

3 0

The excretory system is the system the body uses to filter waste. Food travels through the esophagus, stomach, small and large intestine, pancreas, gallbladder and liver. Your body absorbs important minerals, fats, vitamins and carbs. The musces in your esophagus move the food along in about 2-3 seconds. The stomach's acids break down the food. The liquid mixture files into your small intestine. The small intestine absorbs what you need, while the large intestine then absorbs the last of the minerals. The hard remain rests in your colon, where it then will exit.

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Answer:

Explanation:

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The research hypothesis is that "The new advertisement increases the likelihood of people buying the new mechanical toy dogs"

The new campaign is designed to be persuasive to people with a certain personality profile.

To test her hypothesis, the doctor choose 4 groups of participants and asked them whether they were interested in acquiring the toy before and after watching the advertisement.

The clear limitation in this trial is the failure of taking a representative sample. There are several confounding factors not taken into account, such as social status of the participants (if they can or cannot afford the toy), family status (people with children are more likely to buy toys than childless adults).

It is possible that the people assigned to each group had different propensity for acquiring the toys and that these groups were unbalanced, producing bias in the conclusions extracted from this trial.

I hope this helps!