It is likely that the first organisms on Earth were heterotrophs that obtained energy through animno acids and sugars that formed spotaneously in the early atmosphere. True O False

Question 9 Which of these events occurred in the Mesozoic era? O First mammals O First cyanobacteria O First bacteria First organisms that have the ability to photosynthesize

True or false: The "Miller Urey" experiment that found heating and cooling gases such as H20 and CH4 were able to produce small organic molecules. This proved that life originated on Earth through natural mechanisms.

Given that the early atmosphere did not contain oxygen gas, using only the information covered in Lab 5 please explain how photosynthesis was able to occur in this type of early atmosphere

Choose the word that corresponds to the definition. v A chemical that contains a carbon double bonded to an oxygen as well as a hydroxyl group. Vinegar, for example. v A speculative explanation for how life emerged from non-life that assumes an abiotic origin for ribonucleic acids. These chemicals exhibit self-organization and replication which eventually proceeds to develop into protocells as a precursor to the first lifeforms. v The concept that describes whether a particular location (especially a planet) can sustain life. v Organisms that thrive at temperatures lower than 250 K. v The characteristic of certain objects (especially chemicals) that is associated with distinct mirror-image forms. This is also a feature of left and right hands on a human being, for example. v One of the classes of molecules that is essential to life. It is characterized by a phosphate-sugar backbone chemically bonded to base pairs that encode biological information. v A measure of distance that uses a…

How would you describe earth of millions year ago

Why philoaophers never succeeded trying to transform lead atomic number 82 into gold atomic number 79

Biology 230 McGraw Hill Connect: Bacteria and archaea that reduce nitrate or sulfate so that they can incorporate the nitrogen or sulfur atom into an organic molecule are performing _____________ reduction.  By contrast, when nitrate or sulfate are used as terminal electron acceptors, bacteria and archaea are performing _______________ reduction.

true or false Cyanobacteria evolved 800,000 years BP (before present)

What is the defining feature of autotrophs (that distinguishes them from heterotrophs)? O That they use sunlight as an initial source of energy for their metabolism That they use organic molecules from water, not food, as a source of carbon O That they use carbon dioxide as a source of carbon