Answer: It was obtained 8515 years ago
Explanation:
Expression for rate law for first order kinetics is given by:
where,
k = rate constant
t = age of sample
a = let initial amount of the reactant
a - x = amount left after decay process
a) to find the rate constant:
Half life is the amount of time taken by a radioactive material to decay to half of its original value.
b) for completion of 36% of reaction
t = 8515 years
The time was 8515 years.
Sexual reproduction is a form of reproduction where two gametes fuse together. Each gamete contains half the number of chromosomes of normal cells. They are created by a specialized type of cell division, which only occurs in eukaryotic cells, known as meiosis.
So i'm gonna say that the answer is..B. helped maintain a slow rate of evolutionary change.
The Outline of the top-down effects on bacteria in the four mesocosms is
- Zooplankton is bacterivores that help keep bacteria populations in Check.
- Ingestion of zooplankton by fish leads to a rise in bacteria levels.
<h3>What are
mesocosms?</h3>
Generally, mesocosms are defined as any outdoor experimental system that investigates the natural environment in a controlled setting and may be thought of as a mesocosm.
In conclusion, Overview of top-down influences on bacterial growth in four mesocosms
To put it another way, zooplankton is bacterivores that play a role in maintaining a healthy bacterial balance.
Fish-eating zooplankton may cause an increase in bacteria in the water.
Read more about mesocosms
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Answer:
2- this scale rates an earthquake according to how much damage it causes
