Hello 102683Moreno, <span>Where does the energy come from to make ATP in the light reaction, </span><span>from the motion of hydrogen ions.</span>
Yes. I think that there are some closely related species of organisms that cannot be identified with a dichotomous key.
Dichotomous key is used to classify objects or organisms based on its physical characteristics. Because of that limitation, there are species that may be related according to the dichotomous key but are in fact not or its relation is very minimal whereas there are organisms that may seem unrelated based on their physical characteristics but are actually from the same ancestors.
Answer:
Within the steps of the scientific method there will always be 2 things that vary when doing an experiment, which are:
<u>- Formulate a hypothesis
</u>
<u>- Record observations and collect data on your experiment.
</u>
<u></u>
Explanation:
The scientific method is a set of ordered and logical procedures designed to explain some phenomenon, to establish internal or external relationships between the facts and a way to expand our knowledge.
For this, the laws that explain chemical or physical phenomena must be applied that allow us to explain if this knowledge is useful for man.
Within an experiment the most important thing is the question, it is the starting point of an experiment.
But when asking the question the hypotheses will always exist, the question will be the same, if it changes the experiment changes, but the hypotheses will always be within every physical or chemical change of the experiment.
And all the time, with any movement we make, we are collecting information and making observations of everything that happens.
