How were the methods in which vectors were given to patients in cartier clinical trials different than the way they were given to patients in later trials

What is the difference between a scientific hypotheses and a scientific theory?

Which of the following would you not find in a bacterial cell? dna cell membrane golgi apparatus ribosomes

What is one affect on the australian environment due to the introduction of non-native european rabbits? (a) more grass grew in response to the need of the growing population of rabbits. (b) the rabbits balance out the food chain as they became a natural prey to many predators. (c) the rabbits the land by digging, which caused the soil to spread much needed nutrients. (d) the rabbits out-competed other small animals species and caused them to go extinct.