Answer: Possible life in non earthlike environments.
Explanation: As per the information provided in the question, the microbe located in California's Lake Mono has a variation in the shape of its DNA as they use arsenic ( if phosphorous was once no longer available) to comprise in the nucleotides of their DNA.
This shows the possibility of life structure in the non-earth-like environment because existence types that originated on earth like environment possess carbon, nitrogen, oxygen, and phosphorous ( that is composed of four fundamental elements).
But existence can additionally be shaped in an environment that lacks phosphorous ( for instance, DNA shaped in microbes utilized arsenic in absence of phosphorous, indicating version in their structure).
Answer:
one common ancestor
Explanation:
Although Darwin’s theory is often described as the theory of evolution by natural selection, most commentators recognize that common ancestry (the idea that all organisms now alive on earth and all present day fossils trace back to one or a few “original progenitors”) is an important part of the Darwinian picture.
A reinforcement schedule is a pattern that defines how often a desired response will be reinforced.<span>
</span>A variable-ratio schedule <span>is a schedule of reinforcement where a response is reinforced after an unpredictable number of responses.</span>
<span>Fixed-interval schedules on the other hand reinforce behaviors after set time periods.</span>
<span>"Autotrophs are the producers in a food chain, such as plants on land or algae in water" </span>
