A) a common ancestor
Homologous structures are structures that are similar in related organisms. There is a basic pattern of bones which can be inherited from a common ancestor
The attraction that holds two covalently bonded atoms together is called covalent bond
The answer is concentration gradient. Have a good day.
The flow of energy starts in in you arms. You put your hands together, and use your arms to move your hands back and forth, this is kinetic energy. Your hands rubbing together causes the molecules to bump into each other, this is friction. As the molecules bump into each other they begin to move faster, and the fast movements of the molecules is what creates heat.
Answer:
<u>C. Broca's Area</u>
Explanation:
Broca’s area is located in the front part of the left hemisphere of your brain. It has an important role in turning your ideas and thoughts into actual spoken words. Broca’s area is the most active Source right before you speak.
Broca’s area also helps to pass the information to another part of your brain called the motor cortex, which controls the movements of your mouth. It’s named after a French doctor, Pierre Paul Broca, who discovered the region of the brain in 1861.
<u>Hope this helps!</u>
