Alfred Wegener proposed the theory of continental drift based on the all of the following except? 2.
Similar fossils are found on continents that are separated by oceans.
3
The continents appear to fit together like a puzzle.
The continents on Earth have a fixed position.
4
0 Geological features and rock formations appear to connect continents.

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

yes we can.   a lady urinates from her urethra.

what are the awnser choices? i mean, without choices, it is an incompleat

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these macromolecules could either be amino acids, proteins or nucleic acids. they are responsible for the chemical changes and reactions that affects largely the cell and its composition. take for instance the cytoplasm of the cell where these organelles are settled. these simple organelles are composed of macromolecules which ignites and catalyses different functions that enables cells, in macro-perspective in motion and metabolism. in intestines for example, metabolism happens and breaking down parts of a food to simpler compounds that are used and these nutrients delivered throughout the body and again broken down by into smaller components.