After an mRNA molecule is constructed from a DNA template, which statement explain what happens next? You should select all that apply.

A)
The mRNA becomes a double stranded molecule.

B)
The mRNA brings an amino acid to the nucleus.

C)
The mRNA contains a start codon that reads AUG.

D)
The mRNA travels from the nucleus to the ribosome.

E)
The mRNA is exported from the cell through the membrane.

Which of the following is an example of a tissue on the digestive system a. the stomach b. smooth muscle that lines the stomach c. nerve cells in the stomach d. enzyme molecules in the stomach

Read the following scenario to answer the following question. over the past 60 years, many amphibian species have experienced significant population declines, and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. when most populations of a wide-ranging amphibian species are lost and the few remaining populations are widely separated, we expect to see that a. the founder effect becomes increasingly important b. microevolution no longer occurs c. gene flow between populations is reduced d. artificial selection becomes a greater factor in microevolution

What percentage of light hits earth's surface directly?