Answer: directional
Explanation:
Because only one trait was favored. When bears are cold, being bigger helps them better adapt to the coldness. Adjusting to the weather is one trait.
The vestibulocochlear nerve mediates hearing and balance. Hearing can be assessed with a 512-Hz tuning fork. The Rinne and Weber tests are commonly used to assess for sensorineural and conductive deafness.
Cellular respiration and photosynthesis both have water and carbon dioxide in their reactions.
There would be more prey than predators, as for a predator to have a balanced diet it should have a plentiful supply of food, meaning it needs more prey. You're welcome!
