DNA replication needs to occur because existing cells divide to produce new cells. Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions!
Amino acids. These class of compounds
are considered the building blocks of most organisms, and around 500 of these
are known and indentified. All proteins, carbohydrates, and nucleic acids are
polymers ("many units") and each unit is an amino acid.
The viscosity of magma is determined by its silica content.
Basalt magma, on the one hand, which is often
of low viscosity, has a low silica content of approximately 50% or less. Rhyolite magma, on the other hand, has high viscosity due to the high silica content of
approximately 70% and more.
Gas content and temperatures of the magma are the other factors
that determine an explosive or
nonexplosive eruption. High temperatures
and high gas content (coupled with high viscosity)
cause violent explosions.
Answer:
Plate tectonics
Explanation:
Plate tectonics is a scientific theory describing the motion of seven large plates and the movement of a larger number of smaller plates of the Earths lithosphere.
Answer;
Organisms capture energy from the environment.
Explanation;
-Organisms Capture & Store Free Energy for Use in Biological Processes.
Autotrophs capture free energy from physical sources in the environment.
-Photosynthetic organisms capture free energy present in sunlight.
-Chemosynthetic organisms capture free energy from small inorganic molecules present in their environment, and this process can occur in the absence of oxygen.
Heterotrophs capture free energy present in carbon compounds produced by other organisms.
-Heterotrophs may metabolize carbohydrates, lipids, and proteins by hydrolysis as sources of free energy.
-Fermentation produces organic molecules, including alcohol and lactic acid, and occurs in the absence of oxygen.
