Scientists study fossils in order to
a. predict how a species will react to weather
b. learn how species changed in the past
c. learn about what types of species will evolve in the future
d. predict weather patterns

Which of the following describes the difference in stimuli required to detect a difference between the stimuli? a. just noticeableb. signal detectionc. subliminald. top down

The image shows a group of fish. the type of social behavior shown in the image is called

Will ! a cell containing a 3% sucrose solution is placed into a beaker containing a 7% sucrose solution. assume the cell’s membrane is permeable to water, but not permeable to the sucrose. where will the water diffuse? explain.