Is the following statement true or false? luminol detects human blood at crime scenes. it changes color if an iron-containing protein in red blood cells is present. luminol is a chemical indicator.

A. True

B. False

Pulse rates were taken for five people each, in three different situations: sitting, after meditation, and after exercise.

Which describes a group of organisms that is considered a species? A. They can breed and produce offspring that can breed. B. They are members of the same community. C. They live in the same ecosystem, community, and biome. D.

The goal of transcription is to produce what

Slow, gentle slope with shallow water and animals A continental slope B-mid ocean ridge C-abyssal pain D-continental shelf E-ocean trench

This is a tulip plant. Which statement best describes the flower based on its physical characteristics?

Which type of genetic test involves identifying recessive disease-causing alleles in potential parents? a. Preconception test b. Prenatal test c. Newborn screen d. Predisposition test e. Predictive test

Which describes Einstein's general theory of relativity? Check all that apply. It replaced the special theory of relativity. It applies to accelerating objects.

A protein has an amino acid sequence leucine-alanine-serine. the amino acids are represented by the mrna code uugcgaagu. what is the corresponding dna code for this sequence?

A genetic trait that appears in every generation of offspring is called ___.

When dr. farrell was a graduate student, he once made up a ph 8.0 sodium acetate buffer. why would the casual observer to this buffering faux pas come to the conclusion that he had the intellectual agility of a small soap dish?