If you transfer energy into two solid substances, which do you think would melt first? A substance with stronger molecular attraction OR a substance with weaker
molecular attraction.

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.

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs