Molecular clocks starts counting mutations at the actual
time of divergence, and are used to estimate the time since a common ancestor.
It suggests that a lineage split occurred 700 000 years ago, 300 000 years earlier than first thought.
Answer:
Halogens correspond to elements in the periodic table located in group VIIA: fluorine, chlorine, bromine, iodine, astatine and tenese
Explanation:
As characteristics: they have valence -1, they form diatomic compounds among themselves, they have high ionization energies, they have high electronic affinity, they are toxic and scarce in nature.
Answer:
The nucleus is called the "brain" of the cell because it holds the information needed to conduct most of the cell's functions. Other molecules make proteins from that information on a regular basis - each moment of our lives
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The following are different modern practices of sustainable agriculture, they include:
- crop rotation
- fertilizers
- genetic engineering
- clay pot drip irrigation
<h3>Meaning of Agriculture </h3>
Agriculture can be define as a branch of science that deals with study of plant cultivation and animal cultivation for man's use.
Agriculture is so important that every day scientists tends to do more research to help modernize and make agriculture better and bigger.
In conclusion, The above listed are different modern practices of sustainable agriculture.
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Underneath the right side of the liver, the gallbladder is a pear-shaped organ.
<h3>
What is the function of gall bladder?</h3>
Its primary function is to gather and concentrate bile, a digestive fluid made by the liver. The gallbladder is where bile is kept after the liver produces it. The gallbladder receives a signal from the stomach when you eat. Bile is released from the gallbladder when it contracts, and it travels through the gut via the major common duct. Bile combines with the food there and aids in digestion.
When the gallbladder is removed from a healthy person, there are rarely any obvious health or digestive issues, though there is a slight chance of diarrhea and fat malabsorption.
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