In adults, the most common food allergies are: 1  Peanuts. 2  Tree nuts. 3  Fish. 4  Crustaceans (such as shrimp, crabs, and lobster). 5  Mollusks (such as clams, oysters, and mussels).6  Fruits.n adults, the most common food allergies are: 1  Peanuts. 2  Tree nuts. 3  Fish. 4  Crustaceans (such as shrimp, crabs, and lobster). 5  Mollusks (such as clams, oysters, and mussels). 6  Fruits.
Sliding filament theory is a model used to explain the mechanism by which muscles contract. The contraction of skeletal muscle, which is what makes movement possible, occurs in three ways.
Plate tectonics is an important theory developed in the 1960s to explain how the continents move across the Earth's surface. Early 20th century geologist Alfred Wegener realised that the puzzle-like fit of many the continents was more than a coincidence, but he couldn't correctly explain what powered their movement.late tectonics is an important theory developed in the 1960s to explain how the continents move across the Earth's surface. Early 20th century geologist Alfred Wegener realised that the puzzle-like fit of many the continents was more than a coincidence, but he couldn't correctly explain what powered their movement.