Aspecies that is said to be polytypic is a species
a. with many variable genes
b. with no average population
c. wtih physically differing populations which can still successfully reproduce
d. whose physically differing populations cannot successfully reproduce with each other

c. wtih physically differing populations which can still successfully reproduce

Explanation:

Polytype is when a single species has many variations in its area of coverage, it is thought that they are distinct species, or when many varieties or breeds of the same species are produced, as in the Lobos, which is naturally already polypic, and many dog breeds are still bred within the subspecies Canis lupus familiaris. In other words, we can say that in a polytyp species, many individuals have very different physical characteristics, but are of the same species, so they can reproduce successfully.

Answer & Explanation:

Within multicellular organisms, tissues are organized communities of cells that work together to carry out a specific function. The exact role of a tissue in an organism depends on what types of cells it contains.