Answer:
placenta
Explanation:
Nutrients and waste products are exchanged between the mother and her baby through the placenta and umbilical cord without any mixing of their blood.
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D is the correct answer. Resting heart rate is the minimum number of beats per minute your heart must beat to be able to fall asleep. Resting heart rate is a number of times your heart beats per minute when you are not active. Before checking your resting heart rate, you had to sit quietly for at the least 5 minutes. Take your pulse for 15 seconds, then you had to multiply the result by four.
<span>When a person's activity level increases, the internal forces in the body also increase, placing stress on the body.</span>
Depends on how old this human is and how much they weigh
Answer:
D. external influences
Explanation:
Outside sources such as friends and social media can all be examples of peer pressure. This is when the people and things around you influence your opinions and actions about topics.
Peer pressure and the examples listed in the question are external influences. As stated previously, these sources can influence your actions. Additionally, they are all considered external because they come from outside of a person's own mind and ideas. Any outside source that affects one's decisions is an example of an external influence.
