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bija089 [108]
3 years ago
7

Which of the following terms best relates to the mechanisn that flatworms use to obtain oxygen pharynx diffusion spiracles excre

tion
Biology
2 answers:
ziro4ka [17]3 years ago
7 0

Answer:

diffusion

Explanation:

A flatworm obtains oxygen needed for cellular respiration through simple diffusion

bagirrra123 [75]3 years ago
6 0

Flatworms absorb oxygen by diffusion mechanism through their skin to the cells in their bodies. Since flatworms do not have a circulatory system, their bodies' cells are positioned close to the skin to ease the uptake of oxygen from surrounding fluids or water.






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Can someone please help me
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1A - Respiratory = trachea, lungs... however both arteries and veins move oxygen around the body, and are therefore valid answers

1B - Skeletal = bones

1C - Muscular = muscles

1D - Digestive = stomach, large/small intestine

1E - Circulatory = heart, veins and arteries

2. Cellular respiration is the conversion of sugar into energy the cell uses to function via various chemical reactions. Digestion is an example of this. Stomach acid breaks down food into sugars that cells break down further into energy to keep you alive

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