Answer:
Explanation:
A population distribution shows _______.
a. the distribution of age groups within a population
b. the amount of organisms in a unit area
c. the total number of organisms in a population
d. where and in what arrangement organisms are located Please select the best answer from the choices provided
The cell is the basic structural and functional unit of life
Scientists figured out that the outer core must be liquid because S waves do not pass through it, but P waves do. The behavior of P and S waves also indicates that the inner core is solid. The speed of seismic waves also depends on the density of the material through which they are traveling.
I believe the correct answer from the choices listed above is option C. It is the products that is not requires in a chemical reaction. These are the substances that is being produced from the reactants involved in the system which needs the atomic nuclei and energy.
Answer:
The fossils that provide information on the formation of an oxygen-rich atmosphere are the stromatilites from the Precambrian era. These are layered and columnar fossils consisting mainly of cyanobacteria which were the original life form back then. These bacteria took in carbon dioxide and produced oxygen by photosynthesis as early as 2.5 billion years ago (the earth is about 4.5 billion yrs old).
Explanation:
