Marine biologists study changes in the ocean. so they will look at the chemical composition of deep waters and see how consecrated the oxygen is. They will also study the movements of the plates because when planted move it usually makes new food for deep life
they will also check animal concentrations in certain areas.
Another thing they do is track animal movements. this could be by putting a tracker on a whale or a shark or anything and watching its depths it goes or watching the distance it goes in a day.
The role of the epidermis is to regulate water loss and to provide a barrier to infection.
c. Iridium
Explanation:
The layer of clay that marks the boundary between the Mesozoic and Cenozoic is rich in iridium. Iridium is an element that is rare on the earth crust. It is found in other astronomical bodies.
- The Cenozoic/Mesozoic boundary is an extinction time zone on earth in which nearly all organisms were wiped out.
- During this period in time, scientists believed that a large bolide collided with the surface of the earth sending all lives to death.
- Meteorites are rich in iridium and during the collision, they released a significant proportion in earth materials.
- This is why iridium was observed by Walter Alvarez in significant proportion in Italy.
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Meteorite brainly.com/question/6372454
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Answer:
increasing bacterial activity as organic matter decays
Explanation:
that would be your answer
I believe its Frameshift (insertion/deletion) not exactly sure though