What evidence led Stanley to the conclusion that viruses are not alive?
(a) He was able to isolate crystals of tobacco mosaic virus. (b) Tobacco mosaic virus is composed of proteins and RNA. (c) Tobacco mosaic virus reproduces inside plant cells.
(d) The virus causes a disease in tobacco plants.

Describe five factors that influence the value of fuel

(drag each tile to the correct identify which questions can be answered by what can be answered by science or which cannot. -is it right or wrong to use genetic engineering to produce new food products? -what are the most common social settings that tend to produce accomplished artists? -if a new gene is added to the genome of a tomato species, will that species be more resistant to insects? -should humans use biotechnology to bring extinct organisms from the fossil record back to life? -do the types of organisms found in the fossil record appear in consistent sequences in different parts of the world? -are michelangelo's paintings more impressive than rembrandt's?

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled