Identify the sentence that expresses the central point or th…
Identify the sentence that expresses the central point or thesis statement in each selection. 1Almost all insects will flee if threatened. 2Many insects, however, have more specialized means of defense. 3Roaches and stinkbugs, for example, secrete foul-smelling chemicals that deter aggressors. 4Bees, wasps, and some ants have poisonous stings that can kill smaller predators and cause pain for larger ones. 5The larvae of some insects have hairs filled with poison. 6If a predator eats one of these larvae, it may suffer a toxic reaction. 7Insects that defend themselves by unpleasant or dangerous chemicals gain two advantages. 8On one hand, they often deter a predator from eating them. 9On the other hand, predators learn not to bother them in the first place. 10Other insects gain protection by mimicry, or similarity of appearance. 11In one kind of mimicry, insects with similar defense mechanisms look alike, and predators learn to avoid them all. 12Bees and wasps mimic each other in this way. 13In another kind of mimicry, insects with no defenses of their own mimic the appearance of stinging or bad-tasting insects. 14Predators avoid the mimic as well as the insect with the unpleasant taste or sting. 15For example, syrphid flies look like bees but do not sting. 16Another kind of defense based on appearance is camouflage, or the ability to blend into surroundings. 17Many kinds of insects and animals have distinctive color markings that make them difficult to see. 18Predators have trouble locating prey that looks like its background. 19An insect is more likely to survive and produce offspring if it is camouflaged than if it is not. The central point/thesis statement is in sentence _______.