1. what are the two major steps in protein synthesis (in correct order)?
a. transcription and replication
b. translation and transcription
c. transcription and translation
d. replication and transcription
2. dna can leave the nucleus.
a. true
b. false
3. what is the main purpose of transcription?
a. create an mrna strand from a dna template strand
b. create an rrna strand that will make a protein
c. create a copy of the dna strand
d. create an enzyme that can then translate a protein

Asolution of an enzyme and a substrate was placed in a water bath and the temperature of the reaction was raised gradually. the graph shown was plotted at the end of the experiment. what can be concluded from the graph? a) temperature has no effect on the activity of the enzyme. b) the effect of temperature on the enzyme is unpredictable. c) the enzyme shows increased activity up to a certain temperature. d) the activity of the enzyme is inversely proportional to the temperature.

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.

How does the carbon cycle involve an exchange of carbon