What type of blood vessel returns blood to the heart?
a. artery
b. vein
c. capillary
d. none of the above

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Apopulation of rabbits live in a local forest. some had a mutation for a large body and long legs. the graph below shows the number of both the mutant and the normal rabbits over 5 generations. which of the following statements is true for this scenario? question 7 options: the rabbits with the mutation were more successful with restricted food than the normal rabbits. both sets of rabbits were equally successful with the restricted food source.i the normal rabbits were more successful with restricted food than the rabbits with the mutation. the graph does not let us know which rabbit was more successful.