According to the biomeviewer, mt st helens/spirit lake is in a biome

temperate coniferous forest

temperate deciduous forest

boreal forest

tundra

Mt St Helen’s Lake is an example of Temperate Coniferous Forest.

So correct answer is option A.

Explanation:

It is located in Washington DC in USA. The Mt St Helen’s Lake is also called Spirit lake. It is actually a volcanic lake, formed on the crater of Mt St Helen. It is situated in the temperate region. So the vegetation is of temperate region.

Being a mountainous region, there’s no deciduous trees. Whereas, conifers occupy the region, leading to a temperate coniferous vegetation.

not the best question format lol but what i think might as scale color is controlled by a single gene with two alleles, the green allele and the yellow allele. when moths that are homozygous for green scales are mated with moths that are homozygous for yellow scales, 100% of the offspring have green scales.

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation: