Convection occurs over a very very long time in the earth's mantle. Rock slowly gets melted down from the core, then shoots back up from volcanoes. The new rocks get buried by sand and sediments, and the process resets.
Answer:
Because humans are multicellular, eukaryotic (contains a nucleus), vertebrates, and mammals, the best organism to test the synthetic hormones on would be a mouse.
Explanation:
Humans and whales are multicellular (they have many cells) and their cells are eukaryotic (contain a nucleus). They also have a backbone (spinal column), which makes them a vertebrate. Finally, all humans and whales are mammals. Therefore, to get the best results, the testing should be performed on a mouse.
- Performing the experiment on yeast would give good results for singular-celled organisms, like <em>protozoa</em>.
- Performing the experiment on a fruit fly would give good results for multicellular invertebrates, like <em>spiders</em>.
- Performing the experiment on zebrafish would give good results for all fish in general.
The correct answer is soil structure. Soil structure refers to the arrangement of soil separates into units which are called soil aggregates which possess solids and pore space. Aggregates are separated by planes of weakness and are dominated by clay particles. Example of an aggregate is silt and fine sand.
Fad diets can deny a person nutritional requirements by avoiding certain foods perceived as fattening foods. Even such foods as low-density lipids (that are considered unhealthy in large amounts) are required by the body but in minimal amounts. People on fad diets are more likely to experience symptoms such as dizziness, fainting, and muscle cramps.
