. 1. Angela’s parents have done leg exercises with her every day. At 10-months-old, she starts to walk independently. This is an example of ___________________. 2. For his 10th birthday,

. 1. Angela’s parents have done leg exercises with her every day. At 10-months-old, she starts to walk independently. This is an example of ___________________. 2. For his 10th birthday, Jordan’s parents buy him a ping-pong table. By the time he is 11-years-old, he is quite good at the game. This is an example of ______________________ . 3. At age 14, Adam notices that his voice is starting to change. This is an example of ______________________ . 4. Tamara’s mother made sure to eat very nutritiously while she was pregnant. Also, her parents have always fed her extremely healthy food. Although her parents are both under 5 1⁄2 feet tall, Tamara grows to be 5 feet and 10 inches. This is an example of _________________ . 5. Maria is born deaf. Around 6 months of age she begins to babble, however this behavior soon begins to fade. In this example, _________________ did not occur as expected.