Answer: Older fossils usually are found in the deepest strata.
Explanation: The deeper the fossils are in the ground, the older that they are. The reason is because layers of dirt, sand, and rock cover the fossils, and because they have been around for millions of years, it would give it all the time to cover up the fossils.
Sexual reproduction. Like most mammals, giraffes produce sexually, meaning that both parents contribute to the DNA of the offspring.
Answer:
distance.
Explanation:
The formula for the magnetic force is:
F = I * B * L * sin(α)
F = force, I is current...
This formula can be manipulated to get the distance between magnetic objects.
F = (M v^2) / r .... so r is inversely proportional to Force.
The smaller the distance between the magnets, the stronger the force.
The correct answer is scanning electron microscope and scanning tunneling microscope.
The SEM refers to a kind of electron microscope, which generates three-dimensional images of a specimen by scanning the surface with a focused beam of electrons. The electrons associated with the atoms in the specimen, generating different signals, which comprise data regarding the composition of the specimen and the surface topography.
An STM refers to an apparatus for imaging three-dimensional image surfaces at the atomic level. In this, good resolution is regarded to be 0.01 nm depth resolution and 0.1 nm lateral resolution.
The STM can be utilized not only in a high-ultra vacuum but also in water, air, and numerous other gas or liquid ambient, and the temperatures spanning from 1000 degree Celsius to zero Kelvin.