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Focuses on energy flow and chemical cycling within the environment.

Which biome has thriving reptiles but no amphibians?

Which biome has permafrost and a very short summer?

Write a function that compares two linked lists; it returns True if and only if they have the same length, and contain the same values in the same order.  (Return False otherwise.) Your implementation may use a loop or recursion. You must not convert the lists to arrays, or some other data structure; leave the data as linked lists. def compare_lists(a,b);

OPERATION: Search a linked list to see if it contains a specific value.

OPERATION: Add a new node to a binary tree, if you assume that the current tree is nicely balanced.

Have two tissue layers.

Show the four chordate characteristics in the adult form only.

These points are the “freebie” points that the class has earned by completing the SCS (Student Course Surveys). Everybody gets these points for free; you don’t have to write anything here.

Which of the following cells are responsible for making sure an embryo is implanted into the uterine wall?