Sexual reproduction is a reproductive mode in which zygotes (fertilized eggs) are formed by the combination of bisexual reproductive cells, and zygotes (fertilized eggs) develop into new individuals.

(1) growing new plants from the leaves of pepper grass is asexual reproduction, because it is a way of reproduction in which the leaves of plants directly develop into new individuals, also called vegetative reproduction;

② The development of frog fertilized eggs into tadpoles belongs to sexual reproduction, because frog fertilized eggs are fertilized eggs formed by the combination of bisexual germ cells (sperm and egg cells);

③ The new individuals produced by division of paramecium belong to asexual reproduction, because there is no combination of bisexual cells in this process;

(4) The corn plants grown from corn seeds belong to sexual reproduction, and the seeds transformed into corn are the product of the combination of sperm and egg cells;

(5) The tuber germination and rooting of potato belong to asexual propagation, which is the propagation mode of potato tuber developing into new individuals and also a kind of vegetative propagation;

⑥ The unfertilized eggs laid by the queen bee develop into male peaks, which belongs to sexual reproduction, because in biology, the way in which gametes directly develop into new individuals is classified as sexual reproduction;

⑦ Dolly, a cloned sheep born of a surrogate ewe, belongs to asexual reproduction, and "cloning" literally means copying. Dolly is the expression of somatic cell nuclear totipotency, so it is asexual reproduction;

⑧ The fertilized eggs laid by silkworm moths are also developed into silkworms through the combination of bisexual germ cells, which belongs to sexual reproduction.

So all of the above are asexual reproduction: ① ③ ⑤ ⑦.