Data Analysis Aquatic OrganismpH Range for Life
Clam4.5 - 5.0
Snail5.0 - 9.0
Bass5.5 - 9.0
Crayfish5.5 - 8.5
Mayfly5.5 - 9.0
Salamander6.0 - 8.0
Trout6.0 - 8.5
Perch6.5 - 8.5
Frog7.0 - 9.5

Based on the pH tolerance level data in the chart, an appropriate research topic that would lead to valid conclusions would be represented by ALL BUT one of the following research questions. That question is:
Select one:
a. How does a change in temperature affect the reproduction of crayfish?
b. Would a buffering solution increase the lifespan of frogs?
c. What is the effect of acid rain on animal life within a closed system?
d. What animal life forms seem most resistant to change in pH?

Dr. kaylan is an ecologist who studies bird behavior. she sets up an experiment to test which type of food crows are most likely to eat when given a choice between walnuts, corn, and sunflower seeds. to perform her experiment, dr. kaylan places three food bins in an area frequented by cows. each bin contains one of the three food types. then, she measures how much of each food type is eaten every day for a month and summarizes the results of her experiment in the pie chart below. based on her results, dr. kaylan concludes that crows choose to eat corn more frequently than other food sources because it has a higher nutritional value. what is a reasonable alternate conclusion that can be drawn from dr. kaylan's data

What is the function of the somatic nervous system? connects the brain and the spinal cord to the rest of the body carry signals to the muscles and glands includes all nerves controlling the muscular system and external sensory receptors controls internal organs like the heart and bladder

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?