A B C D E F G Use the following tree to answer the question below. Which of the following trees, if any, depicts the same relationship among species as shown above? FGE D B O O FE D C B A

in our system of classification, organism R and X are placed in the same group. Organism B is placed in a different group. This tells you: R and X are less closely related to each other than to B B and R are more closely related to each other than to X X and B are more closely related to each other than to R R and X are more closely related to each other than to B none of these organisms are related

How is calculating branch length different from calculating the average number of differences between organisms? How is this average different from the total number of differences?

What is the main rule used to define a species in biology?

How is a species identified by name?     A one-part name with the genus     A one-part name with the species names     A two-part name with the genus and the species names     A two-part name with the species names and the genus

You want to know how many mating types a specific fungal species has. In 250-500 words, design an experiment to address this question. Your approach should include both molecular and lab approaches,and make sure you include a clear and detailed experimental design. You can include a figure if you'd like.

Which of the following is an accurate statement of relationships? A B C D C is more closely related to D than to B. C is equally related to B and D. C is more closely related to B than to D. C is related to B, but not to D. E

Which of the scenarios below illustrate(s) a trade off relating to functional diversity and life history traits? Select all that apply A- The C3 photosynthetic pathway is more energy efficient than C4 and CAM, but less water efficient.   B-Plants that produce large seeds generally produce very few, while plants that produce small seeds generally produce many of them.   C- Indices of species diversity rely both on species richness and species evenness, but not on species relatedness   D- Endothermic animals are better able to maintain their preferred body temperature than ectothermic animals, but expend a large amount of metabolic energy to do so.   E- Organisms that specialize on a single food source may use that resource more efficiently than generalists, but risk starvation if unable to find their particular food source.

A Which of the following tree or trees represent the same phylogenetic relationships as the tree above? Select all that apply. 1. 2. A E B 3. 4. A B E O Tree 3 Tree 1 Tree 4

Refer to the table below. What happens to the number of total possible trees as the number of taxa increases?