Answer: The initial rate of a reaction is the instantaneous rate at the start of the reaction (i.e., when t = 0). The initial rate is equal to the negative of the slope of the curve of reactant concentration versus time at t = 0.
Explanation:
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.
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* BRAINLIEST WOULD BE V APRECIATED :) </h2>
Answer choice C) that's the definition of homeostasis
The blisters occur in the second degree burn. The first degree burn only cause the damage to the outer layer of the skin. The blisters are a result of the accumulation of the fluid between the epidermis (outer layer of the skin) and the layers below it. So, for blisters to occur, at least damage to two layers of skin is necessary.
In first degree burn, due to the damage to epidermis only, the redness occur and the blisters does not occur.
