Answer:
herbicide ZWD10
Explanation:
Independent variable in an experiment are defined as the variable that can be changed or controlled as per the requirement of the experiment to determine its effect on the dependent variable.
In the given experiment, herbicide ZWD10 is an independent variable as it's quantity in experiment can be changed or controlled and we are looking for its effect on corn growth which is a dependent variable.
Hence, the correct answer is herbicide ZWD10.
I go with Ice Core examples since early sociteties probably didn't have Written Records or maps, and tree rings would only tell if they were fossilized. I hope this helped :)
1 and three ........................
The name given to the original cell before it divides is called the parent cell.
Allopatric speciation, also referred to as geographic speciation, is a method of the formation of new species due to isolation of the species from one another through geographic means.
The first step in this process is geographic isolation, which means that the original population is divided into two groups due to geographical reasons such as movement of continents or formation of water bodies.
Next, the species are subjected to different selection pressures due to their different environments. Eventually, the gene pool becomes very different for the two species due to the different selection pressures and because they are not allowed to mix.
Finally, after enough time passes, speciation occurs, which means that the two populations cannot breed to form fertile offspring.
