Answer:
Hybrid Offspring Degeneration Phenomenon...
Explanation:
This happens in hybrids because of their improper alignment of chromosomes. It is rare but when two hybrids mate, they already have defected copies of chromosomes of their parental specie. That why the offspring from hybrids are mostly born dead and degenerate totally in embryonic stage.
<u>Answer:</u>
Geologists have sorted earth’s history into different geologic time scale. They just clubbed it into time scales by observing the major changes in the life forms that existed on the earth. Inferring to the fossils found in rocks the time scale was calculated.
First era single cell animals were formed then formed the complex animals.Then Mesozoic era where it is known as the era of dinosaurs. Then the evolution of different species of life during Cenozoic era. These major changes found through fossils helped them to form the GTS.
<span>Parallel, but moving or oriented in opposite directions.</span>
Answer:
Gel electrophoresis
Explanation:
PCR, that is, polymerase chain reactions amplifies the small amount of sample DNA into the multiple copies. These DNA fragments are then subjected to gel electrophoresis, a technique that uses the electric field and separates the DNA fragments based on their size. These separated DNA fragments are then visualized using autoradiography.
<span>The only tissue in your body that is able to contract, or shorten is muscle. When you are exercising, you are changing the shape of your muscles. If you are experiencing a spasm, it is also a form of contraction of your muscles. No other tissue in a human body can change its shape the way a muscle can. </span>