Choose two of the organ systems from the list below and describe how they work together to allow the body to function properly. Use evidence and scientific reasoning to support your answer. Respiratory System

Muscular System

Digestive System

Circulatory System

Nervous System

Excretory System
Please help i'm just a poor student that isn't that smart :[

Answers

The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.

Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries those nutrients where they need to go.

The excretory system removes waste from the body. remove waste from the blood. The digestive system breaks down the food you eat into nutrients that provide energy and building materials for cells. The digestive and excretory sytems work together to process the food that you eat.

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation:

"d.) carbon dioxide and hydrogen sulfide"