<span>peer review means to let someone who is your peer, review your work.
</span>They review another's one work, give suggestions, and help edit the paper.<span> </span>
Answer: More than 99 percent of all organisms that have ever lived on Earth are extinct. As new species evolve to fit ever changing ecological niches, older species fade away. But the rate of extinction is far from constant. At least a handful of times in the last 500 million years, 75 to more than 90 percent of all species on Earth have disappeared in a geological blink of an eye in catastrophes we call mass extinctions.
Though mass extinctions are deadly events, they open up the planet for new forms of life to emerge. The most studied mass extinction, which marked the boundary between the Cretaceous and Paleogene periods about 66 million years ago, killed off the nonavian dinosaurs and made room for mammals and birds to rapidly diversify
Answer:
DNA- DNA, short for deoxyribonucleic acid, is the molecule that contains the genetic code of organisms. ... DNA is in each cell in the organism and tells cells what proteins to make.
Explanation:
whats up
High blood levels of the amino acid homocysteine
have been linked to increased risks of cardiovascular disease.
<span>Cardiovascular disease is a disease related
to heart, in which vessels become narrowed or blocked and these can lead to
heart attack or stroke.
Homocysteine is an amino acid and its important source
is meat, we get this from eating meat and when the level of these amino acid
increases in the blood, it leads to heart disease.</span>
