What is the equivalent of the mammalian mouth and nose in the respiratory system of insects?
A. Alveoli
B. Tracheoles
C. Spiracles
D. Epithelial tissue
C. Spiracles
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Common contaminants in blood drawn from a vein include all EXCEPT which of the following?
A) Staphylococcus epidermidis B) Coryneform bacteria C) Propionibacteria D) Escherichia coli
You inherited from your mom both her crooked nose and her recipe for chocolate chip cookies (both favorable traits). Which trait will be spread more quickly through the
A. the nose because it is a genetically based trait B. the recipe because it is a genetically based trait C. the nose because it can be passed on to all relatives D. the recipe because it can be passed on to all relatives E. They are both advantageous traits and spread at the same rate. F. It depends on if you are male or female.
Which of the following statements best describes secondary endosymbiosis?
A. A host cell manufactures its own symbiont and later acquires another one by phagocytosis. B. A host cell ingests another cell already containing a primary symbiont. C. A host cell ingests two or more symbionts simultaneously. D. A host cell ingests one symbiont and then later ingests another one. E. A host cell without plastids ingests a prokaryotic cell.
In order to use the energy stored in sugars, cells must first transfer it to ____ that is synthesized during aerobic respiration
a. carbon b. oxygen c. ATP d. NAD+ e. carbon dioxide