DDT is a toxin used to kill insects on plants. DDT will weaken the eggshells of the bird so that the eggs shatter when sat on. If the insects and plants are exposed to this toxin, explain how this toxin can also reach lizards and predatory birds.

Sarah is sitting at the top of the slide in the schools playground. which will increase sarah’s kinetic energy a- an additional child is added to the top of the slide. b- sarah is pushed and moves down the slide. c- sarah climbs down the ladder and off the slide. d- the ladder is moved to the other side of the yard.

Which of the following is caused by reproductive isolation within a species? a. a decrease in gene flow b. an increase in genetic flow c. a decrease in genetic drift d. an increase in gene flow

What do you call the long folded tube inside the body attached to the stomach where nutrients in the food are absorbed?