Answer:
A: Using microorganisms to clean up an oil spill.
Explanation:
Bioremediation is a subcategory under biotechnology which alters environmental conditions with the usage of living organisms. It's a process that focuses on breaking down contaminants - making it an effective method to clean up oil spills due to its efficiency and affordability compared to other options.
By squeezing the food and pushing it towards the digestive juices in your stomach
No a vampire bat does not go through metamorphosis