When chromosomes are duplicated before mitosis or meiosis, the amount of DNA in the
nucleus is tripled

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

What are the responsibilities of the region of the brain highlighted below? =+= will rate brainiest =+=

16. which of the following accurately describes a step within transcription? a. dna polymerase uses one strand of rna as a template to put together nucleotides. b. the dna strand is used as a template for which a complementary rna strand can be produced. c. the rna strand forms a template by which dna can be built. d. the rna strand is produced within the cytoplasm.