Zoologist: _____________________________Period: ________ Kingdom: ANIMALIA Phylum: CHORDATA General Characteristic: _______________________ Class: Agnatha Class: Chondrichthyes Class: Osteichthyes Class: Amphibia Class: Reptilia Class: Aves Class: Mammalia 1 Point and Non-point Source Pollution: Point Source Pollution – pollution coming from a direct source (you can point at it) Non-Point Source Pollution – pollution coming from run-off (fertilizers, road salt, etc.) HEALTH OF A STREAM: WHY IT MATTERS. So far this year, you have learned that all things are connected in an ecosystem. One organisms life affects other organisms. We have discussed food webs and determined that even the most annoying organism is needed in an ecosystem for a reason. If there is a lot of pollution, that kills organisms, the entire ecosystem is at risk. ACTIVITY: Use the handout given in class to record and analyze your data Today in class, your activity will be to determine the health of 3 local streams by identifying the organisms in that stream. The 3 local streams are: A – A small tributary of the Conestoga River – located in a wooded area. B – the Conestoga River that flows through our school district C – The Susquehanna River Activities: 2 Macroinvertebrate search Classes: I. Agnatha - Jawless fish (no jaw) Suction mouth with teeth to hold prey Found in freshwater and seawater Believed to be the first (“oldest”) of the vertebrate species II. Chondrichthyes - Sharks, Rays, Skates Animals with cartilage instead of Bone skeletons Specialized rows of teeth Scales Body plans adapted for powerful swimming Live in Freshwater and Seawater III. - Osteichthyes Most of world’s fishes are bony fish Have skeletons made of bone Many have streamlined body plans adapted for fast swimming Found in Freshwater and Seawater Characteristics: - External Fertilization – female releases eggs and male fertilizes them with sperm in open water - Survival of the fittest - many eggs get eaten by predators – only a few survive, hatch, and must survive without the help of mom and dad. An exception to every rule: Seahorse fathers carry the young in a pouch. - Overfishing has caused many species of fish to decline in population. Fish Fun Facts: - Most fish swim horizontally. The only fish to swim vertically is the seahorse! - The larges fish in the world is the Whale Shark – up to 50 feet long! The smallest fish is the goby – growing up to a half inch big. - Fish can live all over the world’s waterways, even in the Antartic waters – they have a chemical in their blood that works like antifreeze 3 Agnatha Osteichthyes Chondrichthyes LIFE CYCLE A. Eggs are moist – not hard B. Need to lay eggs in water. C. Tadpole frogs develop 3 chambered heart. D. Label the life cycle: Use these terms: Eggs, Tadpole, Tadpole frog,Young frog, Adult frog Do frogs have INTERNAL or EXTERNAL Fertilization? explain ____________________________________________________ ____________________________________________________ How do the tadpoles breathe? ___________________________________ How do the adults breathe? ___________________________________ HOW ARE AMPHIBIANS AN INDICATOR SPECIES? An indicator species is an organism whose presence, absence, or abundance reflects a specific environmental condition. SAY WHAT? Put the definition in your own words: 4 _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _ CHARACTERISTICS: Most lay their eggs in _________________. Spend part of their lives in water and part of their lives on land. (“Amphibian” in Greek means water and land) Ectotherms (Cold-blooded) Moist eggs – not hard CLASS: AMPHIBIA 3 TYPES Salamanders and Newts Frogs and Toads Do not have tails throughout life Have a tail for their entire lives Caecilians Do not have legs Look similar to earthworms What is the difference between a frog and a toad? ____________________________________________________________________ ____________________________________________________________________ ACTIVITIES: - 5 Label life cycle of frog The Vanishing Frog – Indicator Species (video on Chitrid Fungus) Computer Dissection and Body Systems Frog Dissection (see end of packet) A Tiny Turtle in Danger of Disappearing! Read the information (handout) on the bog turtle and answer the questions below. 1. What does hibernation mean? ___________________________________________________________ 2. Why do animals hibernate? _____________________________________________________________ 3. What is the rarest and one of the smallest turtles in North America? ____________________ 4. Why does the turtle have to gather “solar energy”? ________________________________________ 5. At what age can a bog turtle mate? _______________________________________________________ a. Why may this affect the population of turtles? _____________________________________ 6. What does it mean to be an endangered animal? _____________________________________________ 7. List 3 reasons why the bog turtle is disappearing in Pennsylvania, behind each reason cite examples from the text. a. _____________________________________________________________________________ b. ______________________________________________________________________________ c. _______________________________________________________________________________ SAVE THE BOG TURTLE! Bog – A wetland that consists of a wet spongy ground full of peat (dead plant matter) Marsh – A wetland that consists of grasses and reeds rather than trees Swamp – A wetland that consists of trees (forest areas that are flooded) Limiting Factors – any resource or factor that will limit the growth of a population Activity: You will either be a bog turtle trying to save your species, or a limiting factor trying to decrease the turtle population. - Turtles start in Nest Zone - Limiting factors start in Bog Zone and must remain in Bog Zone for game. - Turtles need to enter Bog Zone and move from the Mud Hole to the Stream Zone to gather tokens. Turtles must gather 6 tokens (eggs) to reproduce. Turtles may only gather one token at a time. - Turtles can enter the Vegetation Zone. There can only be 3 turtles in the vegetation zone at one time. - The limiting factors will tag a turtle. When the turtle is tagged, he/she must give one token (egg) to the limiting factor. When the limiting factor has collected 3 tokens they can take them to the Dead Zone. - When turtles have 6 tokens, they return to the nest zone to carry on their species. If a turtle LOSES all tokens he/she must become the shopping mall (which spans across the nest zone). 6 Taxonomy: CHARACTERISTICS: - ECTOTHERM (cold-blooded) SCALES AND CLAWS REPRODUCE WITH EGGS THAT ARE HARD 1. Order Squamata – lizards and snakes 2. Order Testudines – turtles and tortoises 3. Order Crocodilia – crocodile and alligators Habitat: Reptiles live mainly on dry land; however, some reptiles do live in water. It is not necessary for reproduction. Reptiles are more numerous in desert or warm locations. Reproduction: Food: Internal fertilization – occurs inside the females body. Reptiles swallow their food whole! Their teeth are only used for holding/killing prey! She then lays eggs that are hard on land. Some snakes give birth to live young (eggs develop and hatch inside mom) like the adder. Bizarre Facts on Reptiles The deadliest snake is not the most poisonous. The black mamba is far more poisonous than the king cobra. The king cobra kills more people on average. A chameleon’s color change is due to outside temperature, light and its emotion; not its background. Crocodiles swallow large rocks to help them digest their food as well as help them dive deeper in the water. 7 Antarctica is the only continent with no reptiles. Class: Reptilia 1. TAXONOMY: 1. Order Passeriformes- examples _________________________ 3. 2. 2. Order Anseriformes – examples _________________________ 3. Order Piciformes – examples ___________________________ 4. Order Charadriformes – examples _______________________ 4. 5. Order Falconiformes – examples ________________________ 6. Order Strigiformes – examples __________________________ 7. Order Ciconiformes – examples ________________________ 5. 6. 7. Bird Behavior: - Migration: ______________________________________________________ Kill Deer: Distract nest predation by pretending to _________________________ Brown-headed Cowbird: Place their __________ in other bird’s nests! SAY WHAT? Listen to these bird songs and calls: Place a number next to the bird you believe is calling/singing. 8 ____ American Crow ____ Northern Cardinal ____ Eastern Screech Owl ____ House Wren ____ Cowbird ____ Red-tailed hawk ____ American Robin ____ Black-capped chickadee ____ Great Horned Owl ____ American Goldfinch ____Red-winged blackbird ____Mockingbird ____ Catbird ____ Killdeer ____ Eastern Wood-Peewee ____ Pileated woodpecker ____ Mourning dove ADAPTATIONS: BIRDS ARE: - ENDOTHERMS - _________________________________________________________ - BIPEDAL - ______________________________________________________________ - EGGS ARE ______________________________________________________________ STRUCTURE AND FUNCTION: ALL BIRDS HAVE: wings,feathers, and beaks A. WINGS for flight – a. Bones - _________________________ b. Digestive System:_________________ c. Respiratory System: _______________ d. Reproductive System: ______________ *The muscles used for flight make up 35% of bird’s bodyweight.* B. FEATHERS: 2 specific types 1. Flight feathers – stiff and longer; used for flights 2. Down feathers – soft and fluffy; keep the bird warm How do birds keep them clean? _______________________ C. BEAKS – Birds don’t have teeth, so how do they chew their food? ____________________________________ - 9 Adapted for the type of food they eat. What would a beak look like if the bird ate meat? Draw it below: Class Aves To be an expert Mammalogist, you will need to use the webquest below to find out more information on these extraordinary animals! Go to my wiki (hess.wiki.cvsd.k12.pa.us). Click on Vertebrates. Scroll down to Today’s date. Click on Webquest. Follow the directions to learn about mammals! 1. Society of Mammalogist: Using my wiki, click on the link A. What are the 3 physical characteristics of all mammals? ___________________, ___________________, ________________________ 2. Put it to the test: using my wiki, click on the link A. Click on “What makes a mammal”? Use the mouse to drag mammals into the family reunion. a. Which two animals were not included in the family reunion? _______________ and ________________________. b. Why were these animals not included? ___________________________________________________________________________ ___________________________________________________________________________ B. Click on the small tab at the top “Hair & Fur” a. What does hair/fur do for mammals? ______________________, ___________________, _________________________, ______________________ b. How does the fur/hair help each of the animals (drag the magnifying glass over each animal) i. Porcupine: ____________________________________________________________ ii. Walrus: ______________________________________________________________ iii. Chinchilla: ____________________________________________________________ iv. River Otter: ___________________________________________________________ v. Clouded Leopard: ______________________________________________________ c. Click on the small tab at the top “Special Earbones”. Read the information and drag the slider to find out how mammal ears are different than other organisms. d. Click on the small tab at the top “Mammary Glands”. All female mammals can produce milk through mammary glands. Match up the bottles to the animals. Read about each mammal and why the milk is different. e.Click on the small tab at the top “Blood”. Drag the day/night bar and compare the reptile to the mammal’s body temperature. 10 i. The Fennec Fox is called an ENDOTHERM (warm-blooded). What does “Endotherm” mean? ______________________________________________________________ ii. The Desert Lizard is called an ECTOTHERM (cold-blooded). What does “Ectotherm” mean? _____________________________________________________________ C. 3 types of Mammals – Using my wiki, click on the link a. Scroll to the middle of the page: Click on the Monotremata icon. Answer the questions below: i. What are the 5 known monotremes: _______________ and the ______________ ii. Where do they live? ____________________ and ________________________ iii. How do monotremes reproduce? ____________________________________ b. Click the Back Arrow to the main page. Click on the Marsupalia icon. i. Marsupials are also known as ____________________. Give an example of an animal with a pouch: ____________________. ii. The Gestation period, is the time the fetus is developing inside the placenta from fertilization to birth. Explain why marsupials have a shorter gestation period than placental mammals. _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ iii. There are marsupials in our backyard! 1. What is the Scientific name of it? _____________________________ . What is the common name? _______________ c. Click the Back Arrow to the main page. Click on the Eutheria icon. i. Placental mammals give birth to LIVE young. The young get nutrients in the uterus of the mother through an organ called the ________________________. ii. Give 3 examples of placental mammals: ___________________, __________________, __________________. D. In REVIEW: A. The 3 types of mammals are: _______________, ________________, ______________ B. What is the difference between each of the types of mammals? __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ The amazing mouse maze! We will test the idea that Mammals have more advanced brains by answering the question: Does a mouse have a memory? Check out the handout from class for more information. 11 Class Mammalia II. RESPIRATORY SYSTEM A. Young breathe with gills. B. Most adults breathe with lungs. C. Skin, like the cell membrane, is permeable - ___________________________________________ **THINK AND WRITE: The blood carries oxygen to all of our cells. When we breathe, how does the oxygen get in the blood stream? __________________________________________________________________________________________________ __________________________________________________________________________________ III. CIRCULATORY SYSTEM A. Movement of blood throughout the body B. Lungs oxygenate the blood (carbon dioxide is removed) HUMAN FROG _____ chambered heart o Two ventricles, two atria Very efficient – no mixing of blood LABEL CHAMBERS AND BLOOD: From : T O Going to LUNGS Coming from lungs From: 12 ____ chambered heart o Two atria and one ventricle Not as efficient – some mixing of oxygenated and de-oxygenated blood LABEL CHAMBERS AND BLOOD: IV. DIGESTIVE SYSTEM A. B. C. D. E. F. G. Fill in flow chart: Mouth – food enters (1st step in digestion) Gullet – tube leading down Esophagus – tube leading down Stomach – break down of food Small intestine – major point of digestion and absorption of nutrients Large intestine – water absorption Cloaca – waste exits Accessory organs: A. Liver – makes bile (emulsifies fat) B. Gall bladder – stores bile C. Pancreas – secretes enzymes to digest food THINK AND WRITE: 1. What is an enzyme? ________________________________________________ 2. The waste enters the cloaca and then exits the body. What is the system that handles waste called? __________________________________ V. EXCRETORY SYSTEM A. KIDNEYS filter the blood and remove toxins. These toxins known as UREA, travel down the URETER into the BLADDER. From the bladder, the URINE exits the body via the CLOACA. **THINK AND WRITE: FILL IN DIAGRAM: 1. How do the kidneys help Kidneys maintain homeostasis? (stable environment) Toxic blood from body ___________________________________ _________________________________ Clean blood to body Ureter Bladder Cloaca 13 2. How does the body control its use of water by the amount of urine it produces? Dehydrated:_________________________ __________________________________ Hydrated:___________________________ __________________________________Frog Dissection 14