A neuron and a white blood cell have very different functions. For example, a neuron can receive and respond to electrical signals while a white blood cell defends the body against infection. This is because ______.

Related Questions

• You are conducting an experiment to determine if increased ultraviolet radiation from the decrease in the ozone layer is killing off frog tadpoles. After examining all of the data available in the library, you decide to go with a hypothesis that increased ultraviolet radiation from the sun is killing off the tadpoles. You design an experiment with a control and an experimental group. Group 1 involves 100 tadpoles in a five gallon container of water, which is covered by glass (knowing that the glass will filter out the ultraviolet radiation). Group 2 will be set up exactly like group 1, except that instead of being covered with glass, it is covered with an acrylic plexiglass, which will not filter out the U.V. radiation. You then place the groups outside for a period of a month, and observe the results. Results Group 1 Group 2 Number of tadpoles 100 100 started with Number finished 96 96 Using this information, answer the following questions. a. What is the experimental variable and what is the dependant variable? b. Does the information from this experiment support the hypothesis? c. If no, then what might be causing the decrease in frog populations? d. Which is the control group, and which is the experimental group? e. What is the difference between the two groups? Should they be different in any other way?
• Which of the following is not part of a molecule of atp? a. ribose sugar c. deoxyribose sugar b. adenosine d. phosphate group
• Match the characteristics to the correct phylum. organisms lack symmetry organisms have specialized stinging cells adult forms are sessile two types of body plan exist—polyp and medusa organisms obtain food by filtering water phenomenon of alternation of generation is observed The groups are Cnidaria and Porifera
• What are some of the qualitative characteristics of the lens? How might those characteristics of the lens help with the focusing of light?
• Which observation provides evidence that a cell is most likely a eukaryote?
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• Why do governments intervene in the market?
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