Astudent says that since the atomic theory is just a theory, it should not be considered useful. which statement best argues against the student's opinion?
a: scientific theories change over time.
b: scientific theories are the results of many experiments and observations.
c: scientists often do not agree about specific details of scientific theories.
d: scientists often propose competing theories.
e: scientific theories do not become scientific laws.

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

Si el equipo no fuera bueno no con el entrenador.