6. Suppose someone brought you a sample of pond water containing an unknown species of microorganism. How could you use the microscopes from this activity to determine: a) whether the species can swim, and b) whether the species is a prokaryote or eukaryote?

a) One will check out for flagella or cilia

b) One will check out for the presence of absence of a nucleus.

Explanation:

Organisms that live in water bodies such as the pond described in this question are called AQUATIC. These organisms possess certain structures that enables them swim along the water current. These structures can include a FLAGELLA, CILIA etc. Hence, in order to determine, with the aid of a microscope, whether an organism from a pond can swim, one will look out for the presence of structures like FLAGELLA OR CILIA.

Also, the cells of organisms can either be prokaryotic or eukaryotic depending on whether they possess a membrane-bound nucleus. An organism without a membrane-bound nucleus is PROKARYOTIC while one with a membrane-bound nucleus is EUKARYOTIC. Therefore, the presence or not of a MEMBRANE-BOUND NUCLEUS is the criterion to determine if an organim is eukaryotic or prokaryotic.

f,,u,,c,,k me daddy

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !