Science grade 4 concept 1 1 adaptation and survival first term

Science Ekb Discover Education Tech book · ⏱ 3:44 · 194 مشاهدة · 3 yr ago

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concept 1-1 adaptation and survival through the process of adaptation species develop traits that make them better suited for survival in their environment this process happens over many generations for example present-day giraffes have long necks that allow them to eat leaves from the tops of trees earlier giraffes did not have such long necks over many generations the giraffe population shifted in the direction of the longer neck trait because longer necked individuals were more successful at surviving and reproducing this type of adaptation is structural adaptation types of adaptations throughout this concept students learn about animals and plants that have adapted to living in extreme habitats the organisms in polar and desert environments face survival challenges due to temperature changes as well as lack of resources animals such as the arctic fox and the penguins connect students with distant places that may have been previously unfamiliar to them there are two types of adaptations that can occur in organisms structural adaptations occur when the physical characteristics of an organism change for the organism to better survive in its environment the other type of adaptation that can occur is behavioral adaptation behavioral adaptation occur when there are changes in behavior to better survive examples of this type of adaptation include the seasonal migration of birds to warmer climates as well as the use of hibernation as strategy for survival during months without access to either food or water adaptation is important because it allows species to survive environmental changes for example if climate becomes colder over generations of species may develop traits such as thicker fur or layer of fat if species cannot adapt to an environmental change over time it is forced to move or else die out for this reason natural and human-made disasters that alter the environment more quickly than populations can adapt put entire species at risk if you like the video please press like and if you love it subscribe you