Structure and Function

Transcription

1 Name period date assigned date due date returned Certain structures help an organism perform a certain function. For example, teeth on a shark help the animal get food. On your own, list at least five examples of structures that allow a plant or animal to perform a function necessary for life. (Make sure at least 2 are plant structures) visit this web site for animals: visit this web site for plants: Most adaptations can be grouped based on function. Common functions include: getting food/nutrients, reproduction, protection, camouflage, and movement. Using your list, decide which function each adaptation performs in the organism. List the structure under the correct category on the chart. After you have finished, talk to students around you and add any structures they have to your chart. Make sure you have plant and animal structures. 1

2 getting food/nutrients reproduction protection camouflage movement Think/Pair/Share Animal Adaptations Power Point Questions 1. How do you change your behavior when it is hot outside? 2. How do you change your behavior when it is cold outside? 3. What can animals do to change their behavior if it is hot or cold outside? 4. What is a variation? 2

3 5. What is an adaptation? Complete the chart with the examples from the power point. getting food/nutrients reproduction protection camouflage movement Complete the table with the correct definitions. Behavior instinct learned behavior imprinting 3

4 14. Describe migration and give at least three examples. 15. Describe hibernation and give at least three examples. 16. Why can a coyote survive better in a new environment than a panda? 17 Chameleons are reptiles that have the ability to hide from predators and prey by blending in with their environment. They can change the pattern and/or color of their skin. This ability is known as - A natural selection B imitation C mimicry D camouflage 4

5 18 How do gills of a fish help their survival? A gills allow fish to break down water into oxygen and hydrogen B gills allow fish to process energy quicker so they can move faster C gills allow fish to breathe in air and water D gills allow fish to use the oxygen dissolved in the water. 19 Which of the following adaptations helps birds fly? A they have more fat than most animals so they can fly for long distances. B they have hollow bones so they are lighter C they have smaller blood vessels so their hearts have to work less in flight D they have a larger stomach so they can absorb food faster 20 Study the diagrams showing mouthparts of four different insects. Which of the following could be a valid explanation for the differences in mouthparts among insects? A The insects each live in different climates, requiring a different type of feeding method. B The mouthparts have modifications that are adapted to the insect s method of feeding. C The mouthparts vary depending on the insect s wing to body length ratio. D The mouthparts are varied so that there is not competition within a single species of insect. 5

6 Plant Adaptations Power Point Questions There are more than half a million types of plant, and even though they look different, they all have common parts. These common parts are: Plants use these structures to obtain food, for protection, to reproduce and for movement. Complete the following charts based on the information in the power point. structure root Obtaining Food/Nutrients types and function stem leaf 6

7 structure toxins types and function Protection leaf defenses stem defenses structure flowers types and function Reproduction seeds seed dispersal 7

8 structure phototropism function Movement geotropism (gravitropism) 8

9 15 What process causes a plant to wilt in response to too much or too little water? A photosynthesis B respiration C transpiration D dehydration 16 On leaf surfaces, guard cells that open and close in response to the amount of water available is an example of - A phototropism B constructive feedback C homeostasis D respiration 17 The stem and leaves of the plant in the diagram are exhibiting which behavior? A gravitropism B geotropism C autotropism D phototropism 18 The roots of the plant in the diagram are exhibiting which behavior? A autotropism B hydrotropism C geotropism D phototropism 9

10 19 Plant species rely on various methods of seed dispersal. Which type of seed dispersal would most likely be used by the organism shown in the diagram? A animal dispersal B wind dispersal C water dispersal D gravity dispersal 20 Plants have different signals for attracting pollinators. It is not uncommon for the same plant to have more than one signal. Which of the following would NOT be a way in which plants attract pollinators? A presence of barbs B specific texture or pattern C strong scents D bright colors As a group, create an imaginary organism (plant or animal) with structures that help it perform a specific function. Draw a large sketch of your imaginary organism. Make sure you label the special structure(s) and write a brief description of the function. Be creative and neat, these will be posted on the wall for everyone to see. 10