Nanotechnology, the field of building ultra-small structures one atom at a time, has progressed in recent years. one potential application of nanotechnology is the construction of artificial cells. the simplest cells would mimic red blood cells, the body's oxygen transporters. these nanocontainers, constructed of carbon, could be pumped full of oxygen and injected into a person's bloodstream. if the person needed additional oxygen—due to a heart attack perhaps, or for the purpose of space travel—these containers would slowly release oxygen into the blood, allowing tissues that would otherwise die to remain alive. suppose that the cell-like nanocontainers are cubic and have an edge length of 25 nanometers.
a. what is the volume

Under the soviet system, the government a. controlled all forms of communication. b. allowed newspapers to print whatever they wanted. c. controlled editorials but not the reporting of news. d. encouraged access to a wide variety of news sources. select the best answer from the choices provided a b c d

Why did mendel use pea plants in his experiments? a. they have no alleles. b. they are haploid organisms. c. they reproduce quickly. d. they are all male.

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