Which ecosystem has the greatest biodiversity?
question 15 options:

bog

estuary

marsh

swamp

"Marsh" ecosystem has the "greatest biodiversity".

Option: C

Explanation:

Marsh or Wetland ecosystem is highlighted as “biological super systems” as it is responsible to manufacture giant volume of meal that favors large amount of biodiversity, which is rich as rain forests and local reefs. The combination of important nutrients, shallow water and large primary productivity is basic source for Earth's food web. For example such food web is supported by birds, shellfish, fish, amphibians and insects. This ecosystem helps filtration of pollutants and soil runoff from the upstream sources which in return support river, ocean and bays in cleaning downstream.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

i think the answer is a.keratin is the pigment responsible for skin color.