Touching a hot pan and yanking your hand away--That is nervous system.
Going through puberty is controlled by the pituitary gland.
jumping up and down is controlled by the muscular system.
Breathing harder during a jog is controlled by the respiratory system.
Getting energy to sit through class by eating cereal and a banana is controlled by digestive system and muscular system.
hope it helps
Sexual reproduction offers genetic variation, as the offspring are a combination of 2 sets of genes opposed to one. This ultimately leads to evolution and the adaption to changing environments :)
This has something to do with winter seasons. You see, during winter days, <span>the sun is further down in the sky, so the same circle of sunlight covers a wider area, so there is less light per plant. In this case, those plants that are pointing straight at the sun have higher chances of growing better. Hope this answers your question.</span>
Bacteria have been the very first organisms to live on earth in the waters of the first oceans. At first, there were only anaerobic heterotrophic bacteria.
