The two upper parts or chambers of the heart are called Atria's,
they're separated from their lower counterparts the ventricles by an interatrial septum. All the Atria's do is receive blood returning from the heart to the body.
Without an agent doing work, heat will always flow from a hotter to a cooler object. Two objects<span> of different temperature always interact. There are three different ways for heat to flow from one object to another. They are conduction,</span>convection<span>, and radiation
^^Answer for 3 and for question 4 is
The hot cup has more air flowing around it to cool it down
meanwhile the cold cup has COLD air flowing around it so it would jst do nothing in a result of the cold cups cool temputure to increase
I really hoped this helped and have a great day :)</span>
<span>When you pet a dog, your nerves send a signal to your brain of the soft, silky, warm fur of the dog. Your brain sends a signal back telling your arm to move up and down the dog. Your nerves feel the warmness and softness of his fur and send it to the brain. The brain relates this to other things and secretes hormones through glands which shows the pleasure. </span>
I think your answer is c. Correct me if I am wrong, but I simply subtracted 2081 minus 1997, and got 84 years.
Answer:
The correct answer is - natural selection.
Explanation:
Natural selection is the process in which an organism adapted according to environmental changes for its survival and increase there number by reproduction.
Charles Darwin was first to explain its activities and now it's established as the major process behind the evolution.
Aye aye, primate adapted according to the environment and develop a character for its survival over a period of time. Natural selection is the connection between structure and function.
Thus, the correct answer is - natural selection.