Which of the following statements incorrectly describes common structural features of an animal secretory cell and a photosynthetic plant cell?
a. Both cells have Golgi apparatus. d. Both cells have a plasma membrane.
b. Both cells have mitochondria. e. Both cells have a nucleus.
c. Both cells have chloroplasts.
c. Both cells have chloroplasts.
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Alexander Fleming kept finding mold contamination that was killing his bacterial cultures. This observation eventually lead to the development of the antibiotic penicillin. Why would a fungus produce a compound that is selectively toxic to bacteria?
A. Fungi eat bacteria. B. Fungi are killed by bacterial toxins. C. Fungi compete with bacteria for resources. D. Killing bacteria is an accident. 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 fungi and bacteria? 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? Reflect 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?
Meteorites seem to be primarily composed of material very similar to the material in asteroids
a. True b. False Indicate whether the statement is true or false
Mutations of trpL decrease the efficiency of transcriptional regulation by disrupting the formation of which stem-loop structure?
What will be an ideal response?
Modern humans are classified as belonging to the species ________
Fill in the blank(s) with correct word