Answer:
False
The left atrium receives oxygenated blood from pulmonary circulation through the left and right pulmonary veins. Blood passively flows into the atria without passing through valves.
Answer:
cross-contamination
Explanation:
Transfer of food pathogens between food contact surfaces is one major type of cross-contamination.
For example this can occur when raw foods that have food pathogens come in contact with cooked or ready-to-eat food. This results in contamination.
Astigmatism is a condition in which the cornea is stretched out of proportion, making it harder to see things properly. This can be corrected with corrective lenses or eye surgery.
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