BRAINLIEST and 40 POINTS 1. When can a theory be revised?
A. if the general public does not understand the theory
B. when a new scientist begins working on it
C. if new knowledge expands and corrects our understanding
D. after 10 years

2. What is bias?
A. making objective observations
B. basing reports on your personal beliefs
C. not falsifying data
D. reporting things as they really are

3. What is a trade-off?
A. a technological advance that makes life easier
B. a new scientific discovery that benefits the environment
C. something you sacrifice in order to gain something else
D. something you gain when you study science

4. Which word best describes a good scientific question?
A. narrow-focused
B. broad
C. unanswerable
D. testable

The tasmanian devil, a marsupial carnivore, is facing extinction due to devil facial tumor disease (dftd) which causes bulging cancerous lumps and lesions to erupt around the face and neck — often causing enough deformation to make seeing or eating difficult. dftd has evolved into a contagious cancer, a trait that is unique among cancers. devil mating behavior involves biting around the head and neck, allowing cells from one individual — especially cells from the crumbly dftd tumors — to be transferred to the wounds or face of a new individual. this marsupial was once found across australia, but sea levels rose, isolating the tasmanian population, while the australian population went extinct. what would be an outcome of genetic isolation that is likely to have impacted the spread of dftd? a) reduced territory puts diseased individuals in greater contact with non-diseased ones. b) inbreeding results in less variation in facial features so the cancer is generally fatal. c) genetic isolation has made it difficult for scientists to develop a vaccine against dftd. d) the lack of genetic variation in the immune system of tasmanian devils minimizes resistance to the disease.

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !

Which locations on the map are low-pressure areas? a b c d e