Question 1 multiple choice worth 2 points)

(02.01 lc)wegener attempted to explain the movement of continents but could not identify a source of force strong enough what did scientists eventually identify

as the primary energy source that drives the movement of earth's plates?

convection

friction

gravity

volcanoes

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.