Neurons that carry messages from the CNS to effectors are
(a) sensory.
(b) motor.
(c) interneurons.
(d) both a and b.
(b) motor.
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Are all fungi detrimental (bad) for other organisms?
A. Yes-think of molds that destroy plant crops, or fungal infections that cause athlete's foot. All fungi are bad for organisms they colonize. B. Yes-fungi feed directly on organic material (oftentimes killing it or feeding on it after the original organism has died). As such, they are always bad for other organisms. C. No-fungi are sometimes good, sometimes bad for other organisms. It really depends on which fungus you're talking about and the relationship it has with the other organism. Some fungi, for example, can form a symbiotic relationship with plant roots that increases their nutrient and water absorption. This is good. D. No-fungi are ALWAYS good when they interact with other organisms. There's never a downside or negative aspect to such interactions. Both sides always benefit from the relationship.
The molecule that fits into the active site of an enzyme and reacts with the enzyme is
A. always a carbohydrate. B. an analog. C. always a protein. D. always broken down by the enzyme. E. a substrate.
A negative rate of increase, or a negative r, means that:
A) death rates have decreased. B) the population has a short generation time. C) the population is shrinking. D) there is zero population growth.
Which of the following statements best describes the StaphTEX agglutination assay that you will be using in this lab? (Choose all that apply)
> It uses latex beads that are covered in antibodies that are specific to a particular pathogen. > It uses latex beads that are covered in antigens from a particular pathogen. > Agglutination will occur only if a specific pathogen is mixed with the StaphTEX reagent. > Agglutination will NOT occur if a specific pathogen is mixed with the StaphTEX reagent. > Agglutination will occur if any bacterial pathogen is mixed with the StaphTEX reagent.