In dna, the base adenine binds with 1. thymine. 2. cytosine. 3. guanine. 4. codine.

The diagram illustrates the activity of vesicles during a cellular process.

The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots