Millions of species exist today. Based on Charles Darwin's theory of evolution, which of the following best explains how this is possible?
O Organisms pass on acquired traits to evolve into more advanced life forms.
O Organisms are selectively bred to create new species.
O New species are crossed with each other to form many different organisms.
O Different genetic variations in organisms are selected in different habitats.

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).

its b. greenhouse gasses trap uv rays for heat so that the plants stay alive.