A biologist began studying a population of buildings. In 1998, she found that most of the male frogs croaked, but some did not. A bat species known to prey on male frogs migrated to the area in 2005. The biologist returned to the area in 2008 and repeated population counts of male frogs. The table shows her data. Based on the data, which statement is a plausible explanation for the change in the frog population between 2004 and 2008?

chordata is the answer

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

i think its through the fallopian tube

it would be rhyolitic hope this