A. carbohydrate c. protein
b. lipid d. nucleic acid

1. fats, oils, waxes, and steroids

2. insulates and makes the phospholipid bilayer

3. made of c, h, and o in a 1: 2: 1 ratio

4. made of amino acids

5. made of long chains of c and h bonded together

6. made of c, h, n, and o

7. dna and rna

8. basic unit has an r group as one of its components to determine its traits

9. basic unit is a nucleotide

10. made of simple sugars (end in “ose”)

When does a spring tide occur? question 9 options: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall. they occur on the date of the vernal equinox each year, no matter what stage the moon is in. this is why they are called spring tides. they occur when the sun, moon, and earth are at 45-degree angles from each other. this happens once every spring. they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur all year long.