Contaminated (Dirty) water from a fertilizer production plant is leaking into the ocean. This water is adding nutrients (from the fertilizer) such as phosphorus and nitrogen into the water. Which of the following is a valid concern that biologists should have regarding waste
water and what is the best solution to this concern?
A Concern: The nutrients in the water will kill the plants in the ocean.
Solution: The water should be treated (cleaned) before it enters the ocean
B. Concern: The nutrients in the water will cause an algal bloom (photosynthetic algae will grow quickly)
Solution: Allow more fishing so that there will be less fish eating the plants/algae
C. Concern: The nutrients in the water will cause an algal bloom (photosynthetic algae will grow quickly)
Solution: The water should be treated (cleaned) before it enters the ocean
O D. Concern: The nutrients in the water will kill the plants in the ocean
Solution: Allow more fishing so that there will be less fish eating the plants/algae

The collared lizard is a species found in the desert southwest. male collared lizards show considerable color variation, ranging from brightly colored to a very dull pattern. your goal is to determine the function, if any, of male color patterns in collared lizards, using the scientific method. your tentative explanation is that male color plays a role in attracting females for mating purposes. you predict that females will preferentially choose brightly colored males over dull-colored ones. to test this prediction, you observed the interactions of female collared lizards with their male counterparts. you selected males that were the same age and size, and that differed only in their coloration pattern. you placed equal numbers of the two types of male lizards, bright and dull, in aquariums, along with one female lizard per aquarium. out of 350 aquariums observed, the female chose to mate with the brightly colored male 277 times, and the dull-colored male 70 times. in 3 instances, the females did not mate with either type. create a bar graph of your data, plotting the type of male (dull or brightly colored) on the x-axis. on the y-axis, plot the frequency with which each type of male was chosen by females. using this graph, answer the following question(s). is it reasonable to conclude (i.e., is it supported by the data) that female collared lizards prefer more brightly colored male lizards over dull-colored males?

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

Which of the follow describes a disadvantage secondary sources have compared to primary sources?