Answer:
Only options A (first one) reflects the instances with valid experiment or conclusion.
Quality of any experiment depends upon two things reliability and validity. Reliability is measure of regeneration of results every time an experiment is performed under specific conditions.
Validity is measure of accuracy of results of an experiment. It can be check by two ways: internal validity (checks the design of the experiment) and external validity (checks if the conclusion is the real explanation of the phenomenon).
Now, in marine biologist experiment, he concluded the results only after one breeding season. This makes his results unreliable as it might have happened by chance.
Similarly, in cola experiment the taste was only checked by one candidate i.e. Karl. He might have problem in his taste buds. In addition, the temperature of cola can also affects its taste which is not taken care of in the experiment. Hence, it is not the valid experiment.
Similarly. Jeanette could use more plants for her experiment and Robert just followed only one instruction. He didn't perform any experiment.
<h2>
* BRAINLIEST WOULD BE V APRECIATED :) </h2>
<span>The conclusion is NOT valid since too small a sample of bacteria was used in this investigation.
NOT:
</span><span> The conclusion is not valid since the same amount of bacteria was used in each dish.
The conclusion is valid since too small a sample of bacteria was used in this investigation.
The conclusion is valid since the amounts of bacteria were measured at the end of the investigation.
The conclusion might not be valid since the investigation was carried out only once.</span>
<span>Energy for active transport comes from a cell's mitochondria. </span><span> They are </span>organelles<span> that act like a </span>digestive system<span> which takes in nutrients, breaks them down, and creates energy rich molecules for the cell.</span>
The committed step is the one after which the substrate has only one way to go. Because glycolytic intermediates feed into several other pathways, the regulation of glycolysis occurs at more than one point. This allows the regulation of several pathways to be coordinated.
<h3>What is glycolysis ?</h3>
A process through which cells partially break down glucose (sugar) via oxygen-free enzyme activities. One process that cells use to make energy is glycolysis.
- In glycolysis, sugar molecules are disassembled to produce the energy needed for cellular metabolism. It takes place in the cell's cytoplasm. Thousands of ATP molecules are produced during glycolysis and are utilised for several types of cellular metabolism.
Learn more about Glycolysis here:
brainly.com/question/1966268
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