The sewing needle should float in the water if placed on a horizontal angle if I remember properly.
I hope this helps in some way.
C , because Each strand of DNA acts as a template for synthesis of a new, complementary strand. Replication produces two identical DNA double helices, each with one new and one old strand.
Which cells in the seminiferous tubules regularly undergo mitosis?
Spermatogonia
Answer:
Mixtures can be separated using a variety of techniques. Chromatography involves solvent separation on a solid medium. ... Evaporation removes a liquid from a solution to leave a solid material. Filtration separates solids of different sizes.