Science--Chapter 4A

Chapter 4A

Surviving in the Environment

1. What structures help plants and animals survive?
                Plants have structures that help them get water and sunlight.
                Animals have structures that help them get food, water, and protection.
                Camouflage helps protect animals from predators.

2. What behaviors help animals survive?
             Living in groups makes it easier for animals to get food, water, and protection.
            Adult animals care for their young by providing food, protection, and grooming.
               Migration and hibernation are ways that animals survive during winter weather.
               Different kinds of animals live together in special ways that may help, harm, or not affect one another.

3. How do changes in the environment affect survival?
                Changes in air, land, and water can be harmful to plants and animals
                People can help protect the environment by keeping air, land, and water clean.

4. Do all plants and animals survive?
                Changes in habitat, hunting, and pollution can make some living things become endangered or extinct.
               Fossils, such as shells, bones, and footprints, provide information about organisms that lived long ago.



adaptation                   any structure or behavior that helps a living thing meet its needs for survival

camouflage                  any coloring, shape, or pattern that allows a living thing to blend into its surroundings

migration                     the movement of an animal from one location to another as the seasons change

hibernation                    a long, deep sleep in which an animal’s heart rate and breaking are much slower than normal

symbiosis                    a special way in which two different kinds of living things live together

parasite                         a plant or animal that feeds off another living thing and harms it

host                               a plant or animal harmed by a parasite

pollution                         anything harmful added to the air, land, or water

recycle                        to use the same materials over and over again

endangered                 having a population that is falling low in number and that is in danger of becoming extinct

extinct                         no longer existing

fossil                            any mark or remains of a plant or animal that lived a long time