Giải thích vì sao trong đoạn mạch bị xơ cứng thì máu không thể di chuyển đều đặn và liên tục dưới sự co bóp của tim?

Which is an example of a decomposer? a. bear b.algae c.grass d.bacteria d bacteria

Modern whales developed their traits through natural selection what occurs during the process of natural selection

1. watermelon, papaya, oranges, bananas, and lemons are included in this food group. vitamin c 2. you need 6 or more servings of this food group each day vitamins d and a 3. found in fruit and keeps blood vessels healthy calcium 4. vitamins found in milk bread and grain 5. a mineral that strengthens bones fruit