Answer:
The presence of high temperature and pressure, soil as a medium and also microbes are the factors that determine if animals and plants will form fossils.
Explanation:
As plants as well as animals dies in moist condition, and when buried inside the mud or silt. The soft tissues present starts degrading leaving behind the hard bones and also shells. Over the period of time various layers gets formed over it. As a result of high pressure and temperature fossils are formed. In case of animals the mineralized shell i.e. trilobite and ammonite form the fossils. It takes around 10,000 years for the formation of fossils the time period is minimum it may vary according to the species.
Answer: Cell
Explanation:
The cell is the structural and functional unit of life. It is the the most basic level. A life starts from a single cell.
When a male and female gamete(germ cell) fuse together they form zygote. Firstly it is a single cell surviving inside the mother's womb.
Then differentiation takes place and the cell keeps on dividing to form different tissue layers and then organs form which makes a complete baby. Hence, zygote and germ cell are cellular level of organization.
Answer:
Amino acids
Explanation:
Nitrogen is a major part of amino acids. Which are the building blocks of proteins and nucleic acids.
The answer is bonds between atoms break and new bonds form. In order for a chemical change to happen, a new substance/substances (products) have to form that have different properties from the reactants. The bonds in the reactants break and new bonds form in the products.
Hope this helps
A.) Light traveling from the sun to my car seat