Not quite sure but would say Archaebacteria with the most confidence... hope this helps good luck
Answer:
this is an example of a positive acceleration because Paul is speeding up not slowing down
Explanation:
Answer:
The heart valves
Explanation:
The heart valves prevent blood from flowing in the wrong direction in the heart. The valves are held in the proper place because of the chordae tendinae.
Explanation:
To raise the temperature of the flight muscles high enough to enable flight the bumblebee shivers, rather the same a we do when we are cold. This can easily be seen in a grounded bee as her abdomen will pump to ventilate the flight muscles.
Human sleep in bed laying down and sheep stand up and sleep and sometimes lay down. Humans takes big sleep and a sheep just take short naps. When suffer from insomnia, they count people and we count sheep XD.