Answer:
A. Populations were separated through geographical isolation.
Explanation:
C. because stimuli is how your body responds to something, and in this case, someone's heart rate increases WHEN their blood oxygen drop. Do you see how it responds? ;-)
Answer:
It is made up of protons and neutrons
Im pretty sure its the genus
Answer:
The correct sequence of muscle contraction from first to last is given below
Explanation:
step 1 myosin head interacts with actin
step 2 ATP binds to myosin head
step 3 ATP is converted to ADP and Pi
step 4 ADP and pi are released from myosin
step 5 Myosin head pivots in the power stroke
step 6 Myosin head is cocked back.
