thriving sea
Explanation:
The fossils seen in the rich rock unit suggests that the paleo-environment of the area is a sea bursting with life.
- Fossils are the preserved remains of life found in rock units.
- Fossils can be used to interpret the nature of the past climatic condition in an area.
- Since different organisms have their habitat and the ecosystem which they thrive, their remains should define such an environment.
- Now, we have a collection of marine fossils here.
- The area must have been a marine environment based on this.
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<u>Answer:</u>
The cell differentiation is necessary for the survival of multi-cellular organisms because at the beginning all the organisms start from a single cell called the zygote. This zygote undergoes mitosis and forms many uniform cells that do not have any specific function.
The differentiation of these cells is required for the development of specific organs and organ systems from this single cell.Cell differentiation is an essential process that gives a specific function to the cells of the body.
To put it simply, ionic bonds form when one atom transfers an electron to another atom. The atom that gains an electron becomes a negative ion while the atom that loses an electron becomes a positive ion. Covalent bonds form when two atoms share electrons. A hydrogen bond is when you have a negatively charged O, N, or F atom in one molecule, a positively charged H atom latched on to an O, N or F atom in another molecule. An example of a hydrogen bond is water.
