Science - 2019-20
3.4 - Living Systems and Processes: Adaptations
The student will investigate and understand that adaptations allow animals to satisfy life needs and respond to the environment. Key ideas include
a) populations may adapt over time;
- provide an examples of how an environmental change may impact the ability of a population to survive. Bloom's Level: Understand
- explain how populations may adapt over time in response to changes in the environment. Bloom's Level: Understand
b) adaptations may be behavioral or physical; and
- differentiate between physical and behavioral adaptations. Bloom's Level: Analyze
- explain how an animal's behavioral adaptations help it live in it's specific habitat. Bloom's Level: Understand
- compare the physical characteristics of animals, and explain how the animals are adapted to a certain environment. Bloom's Level: Analyze / Understand
- design and construct a model of a habitat for an animal with a specific adaptation. Bloom's Level: Create
- explain the role of fossils in constructing inferences about organisms that lived long ago and the environment at that time. Bloom's Level: Understand / Apply
Lasting changes (adaptations) in populations of organisms take place gradually over long periods of time (often thousands to millions of years). These changes are due to changes in the genetic makeup of populations.
UNDERSTANDING THE STANDARD
- Organisms possess physical characteristics and behaviors that enable them to survive in their environment and obtain resources to meet their basic needs with which to carry out life processes.
- Adaptations are physical features or behaviors that aid organisms in surviving.
- A population is a group of organisms of the same kind that live in the same place.
- For populations to survive, their life needs must be met. This includes finding food, defending themselves, and reproducing.
- Populations may adapt (over long periods of time) due to changes in their environment.
- If populations do not adapt to environmental changes or if they do not move to a new environment, the will not survive.
- Physical adaptations help animals survive in their environment.
- An example of a physical adaptation is camouflage, which is the means by which animals escape the notice of predators, usually because of a resemblance to their surroundings using coloration or outer coverage patterns.
- Another example of a physical adaptation would be webbed feet of swimming birds such as ducks.
- Fossils are the remains or impressions of organisms preserved form or as a mold or cast in rock.
- Paleontologists can use fossil evidence to make inferences about life and conditions of the past.
· What is an adaptation?
· How do behavioral and physical adaptations help animals survive?
How do fossils provide clues to animals of the past?
In order to meet this standard, it is expected that students will
- provide an example of how an environmental change may impact the ability of a population to survive.
- explain how populations may adapt over time in response to changes in the environment.
- give examples of
methods that animals use to gather and store food, find shelter, defend
themselves, and rear young.
- describe and
explain the terms camouflage, mimicry, hibernation,migration, dormancy.
- explain how an
animal’s behavioral adaptations help it live in its specific habitat.
- differentiate between physical and behavioral adaptations of animals.
- compare the
physical characteristics of animals, and explain how the animals are adapted to
a certain environment.
- design and construct a model of a habitat for an animal with a specific adaptation.
- explain the role of fossils in determining how organisms might have lived long ago.
gather and store food