The changes that are visible during a chemical reaction are signs that the nuclei in the reactants have been rearranged

True

or

False

List 4 Properties and Characteristics of Metals

Like dna, rna contains four nitrogenous bases. three of them are the same as those found in dna. the one that is different is called. the five-carbon sugar in rna is called

Fossils of what parts of an organism are most commonly found? bones, fur, and teeth shells, bones, and teeth bones, muscle, and teeth

The mouse population of an area decreased last year. Which abiotic factor would explain the population decrease? A) a decrease in rainfall B) a fatal bacterial disease C) an increase in owl population D) competition among the mice for food

A condition in which air leaks out of the lung into the thoracic cavity

What two features make hair a good subject for establishing individual identity? to which layer of the hair shaft are much of these features attributed?

Just so everyone knows this is for science! Sublimation happens to a solid when ... A. the energy increases and the particles move so fast they turn to gas B. the energy decreases and the particles move so slowly they fall C.

The energy is stored in chemical bonds between? A. nucleotide B. Ribose C. Phosphate D. Oxygen

Why is glycolysis considered to be one of the first metabolic pathways to have evolved?

Define of following terms: Autotroph, Heterotrophs