Answer:
1. The Heartlies in the front and middle of your chest, behind and slightly to the left of your breastbone.
2. Right Atrium, Left Atrium, Right Ventricle, Left Ventricle
3. The valves prevent the backward flow of blood.
4. Arteries carry oxygenated blood while veins carry deoxygenated blood.
5. Eat Healthy, Stay Active
Explanation:
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Reduce osteoblast activity while boosting osteoclast activity
osteoblast:
- Untreated celiac disease has a number of potential side effects, including the failure for children to reach their ideal bone density and adult bone loss, both of which raise the risk of osteoporosis. Following a gluten-free diet is the only way to treat celiac disease.
- As a result, celiac disease is common in both children and adults with low bone density. When celiac disease is discovered in an adult, the risk of osteoporosis is very significant (because they have gone longer without absorbing enough calcium and other nutrients).
- Osteoporosis is a bone disease that appears when bone mass, bone mineral density, or both drop or when the quality or structure of the bone deteriorates. This may result in a loss of bone density and an elevated risk of fractures (broken bones).
Learn more about osteoporosis here brainly.com/question/14601010
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Era is used to mark the boundaries of geological time scale by using radio carbon dating technique.
Explanation:
Geological time starts with Precambrian time.
Geologically, time is divided between the Precambrian era and present time into era.
The three eras are Paleozoic era, Triassic period and Cenozoic era.
Era is further divided into periods.
Scientists use radio carbon dating to study fossils and rock formation. With this study they were able to divide them in exact geological scale.
Geologic scale is the record of events in earth's history and evolution.
The kingdoms<span> in the </span>domain Eukarya<span> are the following:
1.) Protista
2.) Fungi
3.) Plantae
4.) Animalia.
Hope this helps!</span>
Answer:
relationships among organisms and evolutionary relationships for organisms with a shared common ancestor.
