Algal phytoplankton are single-celled water organisms that perform photosynthesis like plants. In a lake, summer growth of phytoplankton can change the water pH from pH 7.2 to 6.2. This change indicates all of the following except
A. the water at pH 6.2 has twice the hydrogen (H+) concentration than before the phytoplankton growth
B. the water at pH 6.2 has 10 times the hydrogen (H+) concentration as before the phytoplankton growth.
C. the growth of phytoplankton changed the pH of the water.
D. the lake water solution changed from slightly basic to slightly acidic in pH.
E. the water at pH 6.2 is a stronger acid solution than before the phytoplankton growth.
A. the water at pH 6.2 has twice the hydrogen (H+) concentration than before the phytoplankton growth
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a. Spirogyra b. Phytophthora ramorum c. Plasmodium d. Toxoplasma gondii
You are working in an aquarium that has been breeding an endangered species of fish for return into the wild. You have a batch of progeny from the first generation of breeding. The staff are discussing whether to return those fish to an area that has been completely depleted, or add them to a partially depleted population. “Considering the Allee effect, what do you say?
You are working in an aquarium that has been breeding an endangered species of fish for return into the wild. You have a batch of progeny from the first generation of breeding. The staff are discussing whether to return those fish to an area that has been completely depleted, or add them to a partially depleted population. “Considering the Allee effect, what do you say? Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about the Allee effect? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Baroreceptors are located in the
a. coronary arteries. b. cardiac veins. c. pulmonary arteries. d. carotid arteries. e. pulmonary veins.
The efficient use of which of the following energy resource is limited by geographical location?
a. coal b. gas c. wind d. nuclear e. oil