Homework Quiz 1 Learning About Life
Which of the following list gives the levels of taxonomic classification in order from broadest to most specific? (note - not all levels are included)
Phylum, Order, Species, Genus Domain, Phylum, Order, Class Domain, Class, Family, Species Phylum, Kingdom, Genus, Order Kingdom, Domain, Class, Genus
What is one of the most important things that can be done to avoid sampling error in a scientific study (and hence ensure the most accurate results possible)?
have a large sample size
A tentative, testable explanation for an observed phenomenon is called a(n):
hypothesis
When butterflies reproduce, they lay eggs which hatch to become caterpillars that cannot fly and eat leaves and flowers. Those caterpillars eventually form a chrysalis and transform into the adult butterfly with wings and a long tongue to drink nectar from flowers. This type of development is called:
metamorphosis
All of the California two-spot octopuses (Octopus bimaculoides) living off the coast of Southern California (in an area where they can interact to breed and compete for resources) would be considered a(n)
population
The statement "cockroaches are active at night because they are repelled by light" is an example of a(n):
question theory hypothesis observation experiment
In the following scenario, what is the control group? A scientist would like to know whether eating peppermints during an exam helps to increase exam scores so he designs an experiment to test his hypothesis. He has two groups of students - one group sucks on peppermint candies while they take their Bio-1 exams and the other group does not. Those students all have the same professor, study for the same amount of time using the same techniques, and have the same GPA. At the end of the semester, the scientist calculates average exam scores for both groups and compares them.
the group that does not suck on peppermint candies
In the following scenario, what is the independent variable? A scientist is testing whether feeding dogs peanut butter daily makes them live longer. She has two groups of dogs. The dogs are all the same breed, same age at the beginning of the experiment, get the same amount of exercise, and eat the same type of kibble. The only difference between the groups is that one group is given a tablespoon of peanut butter every day and the other is not. The dogs are tracked throughout their lives and average age at death for each group is calculated and compared.
type of kibble eaten the group of dogs that are not given peanut butter daily serving of peanut butter average age at death breed of dogs
