Answer:
a substituted derivative of purine, especially the bases adenine and guanine present in DNA.
a colorless crystalline compound with basic properties, forming uric acid on oxidation.
1.environmental health, and economic
Explanation:
The green space on top of the apartment provides an environmental, health and economic benefit.
- Environmentally, the green space will ensure that more oxygen is produce and the quality of air is improved.
- Plants will use up any excess carbon dioxide that might want to contribute to global warming.
- In terms of health, quality air is very important life.
- Breathing problems associated with polluted air is ameliorated.
- The higher rents is an economic advantage for the owner of the property.
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Answer:
The most closely related are amphibians and reptiles.
The least related are amphibians and mammals
Explanation:
Amphibians broke off from reptiles, birds, and mammals around 260 millions years ago and next up are the reptiles which broke off around 225 million years ago. So they are the most closely related
Mammals are the last to break off, around 200 million years ago. So they are the least related to amphibians.
Answer:
The original water sample contains 830,000 cells per milliliter.
Explanation:
A sample of well water is tested for its bacterial content in a plate count assay. A one-milliliter sample of the water is diluted in a 1:10 dilution series. One milliliter of the fourth dilution tube is plated in a pour plate. After incubation, the plate has 83 colonies, indicating that the original water sample contained 830,000 cells per milliliter.