A bat wing is homologous to a whale's: FLIPPER
1. mouth 2. esophagus 3. stomach 4. small intestine 5. large intestine
Peristalsis is what moves the food in the digestive system
Answer:
I think its c Scientists cannot determine how it changes.
d). It increases over time.
The answer is (y-7x)(7x+y)
It is this because you must have y^2 which is two y's thats why there is two y's in the answer and -7 and 7 because -7×7= -49