Natural disasters because they are all natural
The development of Ozone, Oxygen, Cyanobacteria <span>factored into the development of complex organisms. The correct option is the last option.
</span>The end of the Paleozoic Era was signaled by mass extinction of land and sea animals. The correct option is the second option.
Reptiles evolved from an ancestor of amphibians that developed an egg with a strong outer shell that kept it from drying out. The correct option is the first option.
The difference in tooth wearing according to anthropologists can explain feeding habits of early man. One explanation is the use of front teeth especially as tools (for cutting) also enabled evolution to favor their increased size. Teeth generally decreased in size as early man's brains became bigger and were able to process foods before eating.
Paraphrasing is the act of rewording, revising, simplifying and expressing the text in your own words with additional clarity. Note that condensing the text to a shorter form should not be in your interests because that would be summarizing, not paraphrasing. Check this out:
Nonliving organisms and lifeless organisms are not the same thing. Inanimate organisms are not dead, they're nonliving. Being nonliving means not having a characteristic of life, it means that the object is inorganic. A valid example could be a rock. A rock has never had a characteristic of life. Being deceased means that life once inhabited the being and has left it. Just as a moose gains life from conception, it's deemed dead once life has left it. In science, nonliving organisms and lifeless organisms are not the same thing; one was gifted life and one was inanimate from the beginning.
It will take 1,000,000 times slower for Hydrogen Peroxide to decompose
Hydrogen peroxide is a toxic compound that usually destroys cell membrane. Also, it is a byproduct of metabolism that must be broken down quickly because it can cause damage to the cells. Moreover, catalase is an enzyme that is found in almost all the living organism and function by catalysing the decomposition of hydrogen peroxide into water and oxygen. However, the decomposition of hydrogen peroxide is very slow and cannot sustain human life in the absence of catalase.
