Match each word with the following statements about food chains and food webs. Producers
herbivores that eat the producers
Primary consumers
refer to the steps in a food chain
composed of organisms that share the
same function and nutritional needs
Food webs
Decomposers
take the energy from the sun and make it
useable for living things, also called
autotrophs
Trophic levels
Food chains
carnivores or omnivores that eat primary
consumers
Secondary consumers
show the simple, linear energy transfer
from one species to the next
break down dead matter and return the
nutrients and energy to the soil
take into account that many species feed
off of more than one type of food source
Show Text Version

Nanotechnology, the field of trying to build ultrasmall 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 probably mimic red blood cells, the body's oxygen transporters. for example, nanocontainers, perhaps 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 could slowly release oxygen into the blood, allowing tissues that would otherwise die to remain alive. suppose that the nanocontainers were cubic and had an edge length of 24 nanometers. part a part complete what is the volume of one nanocontainer? (ignore the thickness of the nanocontainer's wall.) express your answer using two significant figures. v v = 1.4ă—10â’20 l previous answers correct significant figures feedback: your answer 1.3824â‹…10â’20 = 1.382ă—10â’20 l was either rounded differently or used a different number of significant figures than required for this part. if you need this result for any later calculation in this item, keep all the digits and round as the final step before submitting your answer. part b suppose that each nanocontainer could contain pure oxygen pressurized to a density of 81 g/l . how many grams of oxygen could be contained by each nanocontainer?

1. list three scientific reasons cockroaches may fly.

Chromosome 17 is made of over million base pairs.