7 2 points
You use the spectrophotometer to measure the absorbance of an unknown sample of ortho-nitrophenol.
Your absorbance reading is 0.485 A
Use the standard curve shown here to give an estimate of the concentration of the ortho-nitrophenol. Don't forget to include the unit of measure in your answer.
Your estimate must be within 15 units of the actual concentration. Only include the concentration and the unit in your answer.

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.

Fill in the blank 1. digestion occurs in the small intestine through the action of enzymes. 2. urea, excess water, and other waste materials are eliminated in a water fluid called 3. can cause infections by injecting dna or rna into hosts. 4. the human immune system produces in response to a vaccine, which later can bind to and destroy a pathogen if it invades. 5. are structures that link bone to bone at a joint 6. in the heart, blood flows from the right atrium to the right ventricle, where it is pumped to the the words i can use are: lymphocytes gliding pivot gas urine absorption dermis fulcrum lungs chemical viruses capillary vertebrae esophagus tendons antibodies synapses ligaments kidneys pathogens

Which factor that affects biodiversity?