¿Who is stronger, Groot or Black Widow?

Groot is a character in the Marvel Cinematic Universe (MFCU) who is also part of the Guardians of the Galaxy. Groot is an extraterrestrial being who belongs to the Flora colossus species, a race of arboreal humanoids capable of regenerating and controlling their own plant bodies. In the UCM films, Groot is portrayed as loyal and brave, yet innocent and sometimes childlike in nature. Groot has a very distinctive personality and his vocabulary is limited to the phrase "I am Groot", although other characters seem to be able to understand his meaning based on context and intonation. Groot possesses superhuman strength and stamina thanks to his wooden body, as well as the ability to regenerate and grow his limbs at will. He can also throw sharp spines and control the vegetation around him. Throughout the UCM films, Groot plays an important role in the fight against the forces of evil, even sacrificing himself to save his friends on one occasion. After his sacrifice, a new Groot is born from a branch, meaning the character is essentially immortal.

Black Widow is a well-known character in the Marvel Universe. She is a skilled fighter, a spy, and an Avenger. Natasha Romanoff, also known as Black Widow, has been a part of Marvel Comics since 1964. Natasha was born in Russia and was trained as a spy from a young age. She eventually defected to the United States and became a member of S.H.I.E.L.D., where she began to work with superheroes. Black Widow has been affiliated with several superhero teams, including the Avengers, the Champions, and S.H.I.E.L.D. Black Widow's most notable superpower is her combat skills. She has trained in various forms of martial arts and is proficient in using weapons such as guns, knives, and batons. She is also an expert in espionage, able to infiltrate and gather intelligence on her targets. In addition to her physical abilities, Black Widow is also known for her tactical mind. She is a skilled strategist, able to analyze situations and devise plans to overcome her opponents. She is also a master of disguise, able to blend in and infiltrate her surroundings unnoticed. Another unique aspect of Black Widow is her enhanced physiology. She has been given a serum that slows down her aging process, making her live longer than the average human. Additionally, she has a heightened immune system, allowing her to resist certain poisons and diseases. Overall, Black Widow's strength lies in her versatility. She is a skilled fighter, an intelligent strategist, and a master of espionage. Her abilities make her a formidable opponent, and an invaluable asset to any team she works with.