Answer:
Disrupts the nitrogen cycle by contaminating the groundwater and making it more difficult for the plants to absorb the nitrogen and causes the phosphorus cycle to accelerate, resulting in an excess of phosphorus in water and soil.
Explanation:
Answer:
they are chambers located below the two atria.
the right ventricle receives deoxygenated blood whereas the left receives oxygenated blood which opens up into the aorta
Genotype refers to the complete genetic make-up and can also be referred to as the alleles an organism carries on a particular gene.
John's genotype with unattached being dominant is Aa.
- Using A to represent the alleles
- Since his mother has attached earlobes, her condition can only be inherited in the recessive condition (aa).
- So for John to have an unattached earlobe, his father has to be either AA or Aa.
- Therefore John's genotype would be Aa
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Answer:Hiking uphill.
Cycling more than 10 miles per hour or steeply uphill.
Swimming fast or lap swimming.
Dancing, fast dancing, and step aerobics.
Strength training.
Heavy gardening with digging, hoeing
Explanation:
For an activity to be vigorous, you need to work at 70 to 85 percent of your maximum heart rate, according to the American Heart Association. Examples of vigorous exercise include: running. cycling at 10 mph or faster
True
Explanation:
Besides using fossils, a geologist who needs to correlate two rock formation in different areas can use key beds for his work.
Key beds are very distinct layers that has a large geographical range.
- Correlation is the process of matching rock sequences across different terrains.
- This is usually done using index fossils and key beds.
- Key beds are good indicators of homogeneity in an area.
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