Answer: prokaryotic cells have no nucleus, no organelles and a small amount of DNA. Eukaryotic cells do have a nucleus, along with many organelles, and more DNA.
Explanation:
Food provides the raw materials for biosynthesis and energy for cell activities. The body needs food, for growth and development and also for energy; these foods include; proteins, carbohydrates, fat, vitamins and minerals. Food helps us to stay healthy and productive; through various functions; for example proteins; are needed to build, maintain and repair muscle, blood, skin and bones and other tissues and organs in the body.
They can measure altitude and properties of the cloud for better predictions of the weather.
Answer:
Specialized cells and tissues within these organs receive raw stimuli and translate them into signals the nervous system can use. Nerves relay the signals to the brain, which interprets them as sight (vision), sound (hearing), smell (olfaction), taste (gustation), and touch (tactile perception).
