Which activity most is likely a result of a studden, unexpected change in the environment

What type of plant is good for a bioassay and where can i buy it? i only have a month.

Which of the following is an abiotic factor in an ecosystem? a. bacteriab. airc. niched. grass(abiotic=non-living) me !

Select the correct answer. what does the hardy-weinberg principle relate to? a. chances of survival of an organism b. frequency of alleles in a population c. natural selection in a species d. causes of evolution among organisms