Bateman’s gradients can be used to understand the strength o…
Bateman’s gradients can be used to understand the strength of sexual selection acting on a sex. In snails, populations include two sexes, but those sexes can be male and hermaphrodite, female and hermaphrodite, and male and female. In this example, the population is composed of males and hermaphrodites. Using the graph below, who is sexual selection acting on? Note: x-axis = number of mates & y-axis = number of offspring
Read DetailsThere are many types of Natural selection and they act on tr…
There are many types of Natural selection and they act on traits in different ways. Assume there is selection acting on size of a wing in a bird. For each type of selection match what will happen to the variation in wing size among individuals in the population over time. Hint: think about the distributions we drew in class for each of these types of natural selection.
Read Details4C. In this unit we identified many biases that can influenc…
4C. In this unit we identified many biases that can influence individual scientists. Because of these biases, some researchers think objectivity at the individual level is too difficult to achieve. They propose we should focus instead on the community level. Based on our readings about community level objectivity and your discussions in class, name one thing at the community level we can do to make a stronger more objective science? Explain why this would help.
Read Details