Which of the following would be examples of concentration gradients in everyday life? PICK ALL THAT APPLY. Running up a slide at the playground.

A drop of food coloring spreads out into a glass of water.

The smell of fresh-baked cookies starts from the kitchen and moves to the rest of the house.

The air freshener that you sprayed in the living rooms spreads out.

Why do bacteria thrive even in hostile environments

Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them

Step 1 review the imaginary strand of dna below. note the complementary base pairs. a g c a a t c c g t c t t g g t c g t t a g g c a g a a c c step 2 to begin replicating this strand of dna, draw the two sides of the strand separating. step 3 now, draw the free-floating bases linking up with the separate sides. remember to follow the rules of complementary base pairing. step 4 draw the two resulting dna strands.