Why are enzymes so important?
because they act as a catalyst in the chemical reactions necessary for life within organisms.
because they cause decomposition reactions.
because they are the building blocks of proteins.
because they are the building blocks of dna and rna.

Which of the following diseases may be transmitted through an accidental needle stick? a. syphilis b. tuberculosis c. cellulitis d. hepatitis b

(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?

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?