What components makes up the backbone of dna?
a
adenine & guanine
b
cytosine & thymine
c
phosphate & sugar
d
nitrogen base & sugar

velocity and height

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

1. b.

2. d.

3. a.

5. d.

6. c.

these are the only ones that i know, i hope this , and good luck.

bacterium is not correct