I think the proactive stance is a better attitude to promote than after-the-fact worrying!When planning a long week of sunbathing on the beach, What type of DNA damage should sunbathers be aware of before hitting the beach?
A. decreased telomere length
B. activation of uvr A, B, and C genes
C. thymine dimers
D. photolyase-induced mutations
Answer: C
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B. A mature red blood cell is shaped like a biconcave disc because it has no nucleus.
A. its ability to pump blood under high pressure to all areas of the fish's body. B. its ability to maintain a constant blood pressure in the fish. C. its ability to stay full of blood even as it is emptying into the conus arteriosus. D. its ability to pump blood to the gills for gas exchange before the blood is pumped to the remaining areas of the body. E. its ability to keep oxygen-rich blood in one chamber separate from oxygen-poor blood in the other chamber. 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 effect of exercise on heart rate? 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?
Using toilet bowl cleaner and nonionizing radiation on inanimate surfaces only removes or kills vegetative bacteria. The term that best describes this action is
A. antisepsis. B. degermation. C. sterilization. D. disinfection.
If an individual is exposed to external stress, the nervous system is capable of responding faster than the endocrine system.
Answer the following statement true (T) or false (F)
The Chlamydiae life cycle has two forms: the ________, which is the vegetative form, and the ________, which is the dispersal form
a. elementary body / reticulate body b. reticulate body / elementary body c. hypha / conidium d. conidium / hypha