Answer:
Of the 92 natural elements, 25 are essential for life. Of these, there are six main elements that are the fundamental building blocks of life. They are, in order of least to most common: sulfur, phosphorous, oxygen, nitrogen, carbon, and hydrogen.
Explanation:
Answer: a. dead organisms from the marine food web.
c. liberation through ATP hydrolysis in living organisms.
Upwelling is a wind driven motion of lower bottom nutrient rich and warmer water on the surface of the water body. This wind driven motion facilitates the movement of nutrients available for growth of primary producers like phytoplanktons growing on the surface of water body. The dead organisms from the marine food web get decomposed and the organic matter obtain after decomposition is a rich source of phosphorous. This phosphorous gets transferred to the upper layers of the water body by upwelling. In aquatic organisms ATP hydrolysis occurs which is a catabolic process that uses water to split the bonds present in the ATP molecule and hence, releases energy for functions performed by them along with a release in phosphate atom. This phosphate gets mixed with the water. Therefore, PO32 come from dead organisms from the marine food web and liberation through ATP hydrolysis in living organisms that circulates due to upwelling.
Answer:
Cladistic analysis compares the shared and shared derived characteristics of organisms which are thought to be of same ancestral origin.
Explanation:
- The branch of sytematics concerned with inferring phylogeny is termed as cladistics.
- It determines the branching pattern of evolution.
- It decribes the sequence of branching of ancestral lines.
- The basic idea behind cladistics is that the members of a group share common evolutionary history, and are closely related, more so to members of the same group than to other organisms.
Epineurium surrounds a nerve, which contains fascicles which contain nerve fibers.
