The diagram shows the heart of a bird. What is the function of the structure labeled Y?

to keep oxygen-rich blood and oxygen-poor blood flowing

to filter waste materials from oxygen-poor blood

to filter waste materials from oxygen-rich blood

to keep oxygen-rich blood and oxygen-poor blood separate

this a false

explanation:

answer: a. same unit

explanation:

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray