Author: Anonymous

The inner core of the earth is made up primarily of solid iron due to high pressure.   This inner layer has a higher temperature than the outer core which is liquid.   The rotation of the inner core causes a magnetic field to be generated.

The only country in the world to successfully control population growth is

Which of the following molecules are believed to have been absent from the primitive reducing atmosphere?

Bacterial cells pick up free pieces of DNA that were secreted by live bacteria or released from dead bacteria in their environment. This process is called

When conditions are unfavorable, some bacteria form

The recessive allele for sickle cell anemia is more prevalent in regions of Africa where malaria is prevalent, than it is in regions where there is no malaria. This is due to

The formation of simple organic monomers, such as sugars, amino acids, and nucleotide bases, from inorganic molecules is

Which of the following is/are true about natural selection?

The function of a vector in genetic engineering is to

Animal cloning is a difficult process with a low success rate.