Which of the following is a negative about the use of fertilizers in farming? 1. They can help clean bodies of water near a farm
2. They decrease crop yields
3. They are expensive
4. They can cure diseases

True or false: (a) the strings of little red dots represent carbohydrates. (b) the model is called a bilayer because there are two main types of molecules present, lipids and proteins. (c) the many black lines represent amino acid tails. (d) this model shows membrane transport. (e) the blue ovals are hydrophobic. (f) the blue ovals represent phospholipid heads.