A bird-watcher sees a small yellow bird in a tree. Explain to the bird-watcher how he can use a dichotomous key to identify the bird. Assume he does not know anything about dichotomous keys. Then, write two steps of a dichotomous key that would be helpful for the bird-watcher
Rainbow trout live in the rivers and streams of upstate New York. Rivers in this area are cold and have strong currents. If temperatures fall over time because of climate change, what is one variation that would likely help the trout to survive? Why? Write 1-2 sentences.(Write like a 7th grader)
To use a dichotomous key, the bird-watcher would need to answer a series of questions about the bird's characteristics, such as its size, color, and shape of its beak. Based on these answers, the key will lead the bird-watcher to the correct identification of the bird.
Step 1: Is the bird predominantly yellow or a different color?
Step 2: Does the bird have a black stripe on its head?
If temperatures fall due to climate change, rainbow trout may benefit from having genetic adaptations that allow them to thrive in colder water temperatures. This variation could help the trout survive by enabling them to withstand the new, colder conditions in their environment.
A bird-watcher sees a small yellow bird in a tree. Explain to the bird-watcher how he can use a dichotomous key to identify the bird. Assume he does not know anything about dichotomous keys. Then, write two steps of a dichotomous key that would be helpful for the bird-watcher
Rainbow trout live in the rivers and streams of upstate New York. Rivers in this area are cold and have strong currents. If temperatures fall over time because of climate change, what is one variation that would likely help the trout to survive? Why? Write 1-2 sentences. WRITE LIKE A 7TH GRADER
To use a dichotomous key, the bird-watcher can look at the bird's features and answer questions to narrow down the options until they find the bird's specific name. Two steps of the key for the small yellow bird could be:
Step 1: Is the bird's beak pointy or round?
Step 2: Does the bird have any stripes on its wings?
If temperatures fall because of climate change, rainbow trout that have thicker scales or more fat reserves may be better able to withstand the colder water temperatures. This could help them survive by helping them retain heat and maintain their energy levels in the frigid conditions.