Question

WHAT IS STIMULI
WHAT IS THE HARDEST SUBSTANCE IN OUR BODY
WHAT ARE THE 4 TYPES OF TEETH
WHAT IS VILLI . WHAT DOES IT DO
WHAT IS PERISTALASIS AND OESOPHAGUS DIFFERATIATE
WHAT IS BODMAS RULE IN MATHES
WHAT IS ORTHOPRADIC MEAN. EG ; BRAIN ,SKIN, BONE, ETC

Answer 1

1. A biologic stimulus is any external change in the environment that can be detected by an organism.The ability to respond to a stimulus is called irritability and is a necessary condition for life.
2.Enamel is the hardest substance in our body.
3. Incisors, canines,first molars, and second molars this are four types of teeth.
4. The small intestine has millions of tiny finger-like projections called villi. The large surface area they present allows for rapid absorption of digestion products.
5. Peristalsis is a distinctive pattern of smooth muscle contractions that propels food through the esophagus and intestines. oesophagus is a food pipe it provides a wave like or peristaltic movement which helps the food to pushed into stomach.
6.Bracket open division multiplication addition and subtraction.
7. Orthopaedic means relating to problems affecting people's joints and spines.
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