B hope this helps a lot :)
Answer:
No. They will need to repeat their experiment several times, since the weather and times were different both days.
Explanation:
When a scientific experiment is conducted, one independent variable shall be changed in each experiment at a time so that the results of the experiment are authentic and we can easily determine which independent variable caused a change in the dependent variable.
If more than one independent variable is changed in the same experiment, then it will be difficult to interpret that which variable caused the change.
<u><em>Similarly, Maria and her brother need to repeat their experiment several times with just changing one variable at a time. </em></u>
Actually, it is false. P-waves arrive first and then S-waves arrive.
<span>The reason why Mendel recorded the results of so many plant crosses is that he wanted to demonstrate how certain genetic traits are expressed in different generations. This way he could demonstrate what traits are dominant or recessive in plants.</span>
Biotic factors are the living things in any environment, while abiotic factors are the nonliving things.
So, in the Sahara desert the living things (biotic factors) would be the animals and plants.
The nonliving things (abiotic factors) would be the sunlight, temperature, dirt, etc.
