Which invertebrates usually have a concentration of olfactory receptors at their head end?
A. Cnidarians
B. Echinoderms
C. Bilateral invertebrates
D. Predatory invertebrates
E. Prey invertebrates
Answer: C
You might also like to view...
What is common to both photosystems I and II?
A. Both involve the splitting of water to donate an electron to the reaction center B. Both involve the generation of oxygen C. Both lose an electron to a primary electron acceptor that passes the electron down an electron transport chain leading to the generation of ATP D. Both contain a reaction center composed of chlorophyll a E. Both are found in the stroma 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 role that photo systems I and II in photosynthesis? What other information is related to the question? Choose Answer Do you have all the information needed to make a comparison? 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?
Which of the following statements relate to natural selection?
A) Populations experience differential reproductive success. B) Breeding is done intentionally with the intent to increase the frequency of desired traits. C) Variation within a population is heritable. D) Populations experience competition for resources. E) The variations in a population make no difference in terms of reproductive success.
Which of the following is not a difference between endospores and vegetative cells?
A) Vegetative cells are metabolically active, whereas endospores are dormant. B) Vegetative cells are more resilient due to their metabolic activities, whereas endospores are more sensitive to change. C) Vegetative cells normally have enzyme activity, whereas endospores do not show enzymatic activity. D) Vegetative cells stain easily using normal staining protocols, whereas endospores are difficult to stain without special endospore stains
Two diseases that represent high-priority threats as biological weapons today are
A) smallpox and typhus. B) syphilis and HIV. C) anthrax and botulinum. D) anthrax and Salmonella.