Not all members of a species are the same. Every species exhibits variations in different traits <span>like eye color, that are passed from parent to offspring.
This statement is paraphrased from the Darwins's theory. </span>Darwin's theory suggested that there are variations among
individuals in a population and that these variations will help individuals to
survive. <span>Natural selection is the differences in survival and reproduction as the
consequence of differences in phenotypes. </span>
Not sure what you mean but here's what i think
1.They are substrate-specific, because it's a lock-and-key mechanism.
2. They are re-used
3. They can catalyze reactions
4. They decrease activation energy
5. They are proteins by nature.
Answer:
Make sure all tested rats are the same age.
Offer the same type of food to the rats in each trial.
Explanation:
<em>In order to be able to isolate the effects of one particular variable during a research, all the subjects in each trial must be subjected to the same conditions except the variable whose effects is being isolated.</em>
Hence, Kate must offer the same type of food to the rats in each trial as well as make sure that all tested rats are the same age.
I would say the results of the experiment but not the hypothesis, if we're saying possible corrections to the hypothesis count as something outside of it