Radioactive elements can be used for dating rocks because the decay rate of radioactive elements
A.)is not affected by the environment
B.)is linked to Earth's motion
C.)can be controlled by scientists
D.)can increase with time

What is the primary function of the nervous system?

In sweet pea, gene c is responsible for color production and gene p is responsible for the purple color pigment. both of them are located on two different loci on different chromosomes. the flowers will be purple only when the plant has the genotypes as c_p_. no color will be produced with genotypes: ccpp, ccpp, ccpp, ccpp. thus, gene c controls the expression of gene p. what pattern of inheritance is exhibited here? a. pleiotropy b. epistasis c. multiple alleles

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird