The full statement is this: In 1859, Charles Darwin wrote, 'The ........................... ...... At the based of the evolutionary tree of all life is AN ORGANISM THAT IS A COMMON ANCESTOR TO ALL LIVING ORGANISMS.
In biology, evolution has to do with gradual but constant changes in the overall form of living organism. Scientists believe that all life forms came from a common ancestor; it is through the process of evolution and natural selection that primitive life forms developed into higher forms of living organisms. In short, what the statement given in the question is trying to say is that ALL LIVING ORGANISMS ARE RELATED BECAUSE THEY HAVE A COMMON ROOT (A COMMON ANCESTOR).
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Explanation:
Are you looking for sources of error? You'd need to evaluate the procedure itself. More info on this would be helpful!
Some common sources of error are ...
- Lack of temperature control (fixed by monitoring with thermometer, using a hot plate)
- Human traffic in room disrupting fine powders, etc. (decrease number of participants in room)
- Evaporation of substances over extended periods of time affecting yield
Answer: c. to have two copies of each chromosome
An reaction that releases energy into the environment.
The enthalpy change (energy taken in for bond breaking of reactants - energy released for bond forming of products) can be used to determine whether a reaction is exothermic or endothermic. Since an exothermic reaction has a negative enthalpy change, it means it releases more energy than what it takes in. Hence the third statement is correct.
Answer:
When two plates are moving away from each other, we call this a divergent plate boundary. Along these boundaries, magma rises from deep within the Earth and erupts to form new crust on the lithosphere. Most divergent plate boundaries are underwater and form submarine mountain ranges called oceanic spreading ridges
Explanation: