Iodine solution is used to test leaves for the presence of starch. You need to: heat a plant leaf in boiling water for 30 seconds (this stops its chemical reactions) heat it in boiling ethanol for a few minutes (this removes most of its colour)
Answer:
Because the mass contributed by electrons is dwarfed by the nuclear contribution. There exists three orders of magnitude difference. Electronic mass can be ignored to a first approximation.
Explanation:
Answer: biological
Explanation:
it is health and deals with bodies
Answer:
hair follicles are located in the epidermis and the dermis.
Growth is caused by cells in your body dividing; true.
