<u>Answer:</u>
Approximately, the oldest stromatolites are 3.6 billion years old on earth.
<u>Explanation:</u>
- Stromatolites is not only oldest earths fossil but conspiracy in that they are singular visual portal in deep time on earth.
- It is defined as laminated accumulation structure that is they stick up above sea floor .
- Stromatolite buildings includes oldest fossils which are 3.5 billions old when the earth were too unfriendly to support life.
- The study of fossil age, evolutionary, method of formation are known as paleontology.
- These specimens are considered as old fossils which are around 3.4 to 4.1 billions years old.
Answer:
all of these affect enzyme activity
Diet as tolerated means the patient can eat without due restrictions. Since the patient is still admitted in the hospital, the tray for the patient ordered as diet as tolerated should contain basic food groups such as meat for protein, rice or bread for carbohydrates, milk and other fats for fats. This diet should meet or exceed all the RDA requirements for nutrition of the patient.
Heart Blood vessels. (Arteries, Capillaries, and Veins)