Ecology - Ecosystems Questions and Answers

4 Formulate a hypothesis that addresses how the different wavelengths colors of light will affect the process of photosynthesis in spinach leaf disks a Working hypothesis b Null hypothesis c What do you predict will happen in this experiment d What is the independent variable in this experiment e What is the dependent variable in this experiment

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In which biome are destabilization of slopes fires and erosion a big issue for human habitation A taiga C Mediterranean chaparral B tundra D desert

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Question 1 Not yet A biologist

Match each definition with the word or phrase it describes The naturally occurring gas found in the atmosphere that screens out much of the ultraviolet radiation Earth receives from the sun The warming of Earth that occurs when certain gases trap the energy of the sun in the atmosphere The ozone destroying molecules that human activities release into the atmosphere Describes increases in the average temperature of the biosphere The areas of low ozone concentration that are found over polar regions at certain times of

When comparing two or more samples the location with the larger D has a greater amount of diversity Note that a higher total population does not indicate higher diversity a An area of the Black Forest in Germany contains 134 pitch pines 24 Douglas firs and 53 red pines b A meadow contains 1532 chestnut oaks 342 black cherry trees 12 white ash trees and 1022 yellow birches c Your backyard contains 12 fleas 34 aphids 84 ants 93 beetles and 1 butterfly d An African National Park contains 15 lions 94 giraffes 1000 wildebeests 50 elephants and 5 hyenas e Mindo a city in Ecuador has 832 toucans 392 red headed barbets 3 golden headed quetzals 500 dinners

For six years an artificial fertilizer is used on an apple orchard The orchard is next to a stream which runs out into a small saltwater bay Researchers have been sampling fish populations in the bay for five years Their results are shown in the table Fish Population Number of fish 2 500 2 000 1 500 1 000 500 0 0 2 Year 3 5 They have also observed the growth of plantlike organisms in the bay Which is the most likely explanation for the results

Step 1 Choose your ecosystem Estuaries Salt Marshes Mangrove Swamps Seagrasses Step 2 Draw your ecosystem 8 points A diagram that includes a hand drawn picture representation includes the following elements 1 Biotic living factors be sure to include a primary producer pri consumer and tertiary consumer 2 Abiotic nonliving factors be sure to include at least 2 visible al 3 Your ecosystem s interaction with the ocean 4 Diagram is neat colored and organized Step 3 Describe your ecosystem

NAME Science Test Review Sheet EARTHQUAKES AND VOLCANOES 1 BE ABLE TO LABEL THE PARTS OF THE VOLCANO 10 2 EXPLAIN THE DIFFERENCE BETWEEN MAGMA AND LAVA 3 3 NAME THE 3 WAYS VOLCANOES CAN BE DEFINED AND DEFINE EACH ONE 9 4 NAME AND DESCRIBE THE 4 TYPES OF VOLCANOES 15 5 DESCRIBE HOW VOLCANOES ERUPT 4 6 BE ABLE TO IDENTIFY THE 3 TYPES OF VOLCANOES from pictures 3 7 WHERE ARE VOLCANOES FOUND 2 8 EXPLAIN HOW VISCOSITY AFFECTS THE TYPES OF VOLCANO FORMED DISCUSS TWO TYPES 6 9 WHAT DOES IT MEAN TO HAVE LOW OR HIGH VISCOSITY 2 10 WHAT KIND OF ROCKS ARE FORMED WHEN MOLTEN ROCK COOLS 1 11 VOLCANOES MOST COMMONLY OCCUR AT 12 TRUE OR FALSE VOLCANOES ALTER THE EARTH S LANDSCAPE MORE QUICKLY THAN MANY OTHER GEOSCIENCE PROCESSES 1 13 WHO WAS ALFRED WEGENER AND WHAT WAS HIS THEORY 4 14 BE ABLE TO NAME AND DESCRIBE IN DETAIL THE 3 TYPES OF PLATE BOUNDARIES ALSO WHAT THEY CREATE AND AN EXAMPLE OF EACH 15 INL 2

What Do You Think 1 Before using the shade balls was the water just disappearing Explain The lecter didn t dissappear it Jus tevajo ted 2 How are the shade balls helpful It helps slowevancration and stop sunlight from cal any Chemical reactions 3 How will an increase in precipitation affect small ponds 4 How does an increase in evaporation affect small ponds 5 Describe the state change of water as it is being evaporated

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Current thought gives the safe velocity range for a fume hood between Select one O 100 150 ft min O 75 120 ft sec 80 120 ft min O 75 120 miles hr

A fume hood is Select one a respirator a laminar flow hood O a piece of safety equipment O a biological safety cabinet

How far back at the least from the face of the hood should operations be located Select one O 6 inches O 3 inches O 12 inches 9 inches

Air flow indicators should be used to Select one verify air flow velocity into the hood O verify air volume into the hood O verify the absence of spillage from the hood Overify air flow into the hood