Return to the survivorship model you created using dice: You probably found that the chance of dying from heart disease is approximately one-sixth for each die, indicating that survivorship is essentially the same for each age group. Compare what happened in your model with a realistic projection showing at what ages most humans die of heart disease.
What will be an ideal response?
The dice populations have uniform “mortality” and survivorship at all ages, but in the human population, mortality from heart disease is very low for young to middle-age people, rapidly increasing after middle-age. Survivorship, then, is high in young to middle-aged groups of humans but drops with increasing age.
You might also like to view...
The production of a functional gene product by transforming bacteria that lack a lacZ gene with a plasmid containing a lacZ gene is known as
A) complementation. B) mitosis. C) transfection. D) reversion.
Match the following items with the correct phrases.
_______1. Organisms that live on dead and decaying organic matter are said to be __________. _______2. The type of relationship that termites have with the cellulose-eating protozoa that live in their intestinal tract. _______3. A symbiotic relationship that is beneficial to both parties (symbionts) is said to be a __________ relationship. _______4. A lichen is an example of a __________ relationship. _______5. A symbiotic relationship that is beneficial to one party (symbiont), but of no consequence to the other is said to be a __________ relationship. _______6. The type of relationship that humans have with the Escherichia coli organisms that live in their colon. _______7. A symbiotic relationship that is beneficial to one party (symbiont), and detrimental to the other is said to be a __________ relationship. a. commensalistic b. mutualistic c. parasitic d. saprophytic e. synergistic
What disease is caused by the Epstein-Barr virus?
A) the common cold B) rabies C) tuberculosis D) mononucleosis
Bacterial populations have been exposed to an antibiotic and have developed resistance to the antibiotic over time
Would this be an example of stabilizing selection, directional selection, or disruptive selection? Explain your reasoning. What will be an ideal response?