Final answer:
Crustaceans are a large group of arthropods that include crabs, lobsters, shrimp, krill, and woodlice. They are primarily aquatic but some have adapted to living on land.
Step-by-step explanation:
The criteria for receiving crustaceans can vary depending on the context, such as whether it's related to food safety, aquaculture, or research. In the context of the food industry, receiving and handling crustaceans involves adherence to strict standards to ensure safety and quality. Key criteria include proper temperature control during transportation, inspection for freshness, absence of any off-putting odor, and compliance with health and safety regulations. For aquaculture, criteria may include the health of the crustacean population, water quality, and adherence to sustainable and ethical farming practices. In a research setting, criteria could involve specific conditions for the welfare and ethical treatment of crustaceans, following institutional guidelines and ethical standards for animal research. It is crucial to consider the specific requirements and guidelines relevant to the particular industry or context when establishing criteria for receiving crustaceans.