pls can someone help me cuz it's my little sister's paper.
Answers
Choose the correct answer.
a. We should eat a balance diet.
b. Liver helps to filter blood.
c. The stomach is bag made of muscles.
d. The small intestine would measure 6 meters.
e. Sugar and plaque together make an acid.
f. The only way to stop tooth decay is to visit a dentist.
g. Food is chewed in the mouth.
h. Skeletal muscles are also called as voluntary muscles.
i. An adult boy has 206 bones.
j. A joint is a place where two bones meet.
k. Our thigh bone is called as femur.
l. The smallest bone of the body is in ear.
m. Armadillo is an animal with largest number of teeth.
Write down the scientific reason to the following statements.
1. Babies have 300 bones and adult have only 206.
- Babies have more bones than adults.
- When the baby grows up some of the bones fuse together to form a single bone.
- Bones of the babies are made up of cartilage, when they grew up that cartilage will be replaced by actual bone.
So, babies babies have 300 bones and adult have only 206.
2. Bones can bend or break in older people.
- Bones undergo a lifelong process, the mature bone tissue is removed and new bone tissue is formed.
- Changes in tendons and ligaments occur in aging, so joint motion becomes more restricted and flexibility decreases.
- Aging cause the body to reabsorb calcium and phosphate from the bones which makes bones weaker.
So, bones can bend or break in older people.
3. Our teeth rot with excess sugar intake.
- Sugar attracts harmful bacteria that destroy the tooth’s enamel.
- When we eat excess amount of sugar it interacts with the bacteria present in the mouth within the plaque to produce acid. The bacteria found in plaque feeds on the sugar.
- The process of turning the sugars into acid that attacks and eats away enamel, causing tooth to rotting.
So, our teeth rot with excess sugar intake.