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Biology Honors Eco.
Test for my Monday test
| Question | Answer |
|---|---|
| What is ecology? | Ecology is the study of how living and nonliving organisms interact with the environment and eachother. |
| What does ecology involve? | Ecology involves seeking patterns, collecting information on the organisms, and their environment and seeking explanations. |
| Why has environmental knowledge been important to the humans back then and today? | Humans need environmental knowledge in order to understand how to survive/survival of the species. humans changing earth rapidly on a global scale. |
| Why does an incresing populaton require? | An increasing population requires amounts of energy, food and space for the dispoals of waste. |
| How have animals been elimanted? | Animals have been eliminated by habitat destruction, over hunting and new diseases and predators. |
| How many mass extinctions are there? | There are six mass extinctions, with the sixth occurring now. |
| What is the main purpose of the ozone layer? | The ozone layer absorbs ultraviolet radiation from the sun, protecting us from skin cancer and sunburns. It also protects us from cataracts and immune diseases. |
| What chemicals are destroying the ozone? | Chloroflurocarbons and other related chemicals such as methyl chloraf, nitric oxide, and aerosl; are destorying the ozone layer. There are also industural chemicals. |
| What continent is the ozone layer descreasing? | Antarctica |
| The amount of speices on Earth has _______. | increased over last 2,000 years; it has tripled. |
| What is the greenhouse effect? Is it created by humans? | The greenhouse effect insulates the Earth from a deep freeze. The greenhouse effect is natural, humans don't control it. |
| How have humans affected the atomospheres composition? | Humans burn fossil fueles/factories; coal, oil, natural gases; burned providing energy but producing carbon diozide. Carbon dioxide concentration increases increasing average temperature. |
| Average temperature may change __________. | global weather patterns and rising sea levels |
| Is a pond considered an ecosystem? | Yes. |
| What does an ecosystem include? | An ecosystem includes all non-living; physical and chemical; aspects influencing organisms. |
| What is the difference between an ecosystem and a community? | An ecosystem contains both non-living and living factors/aspects while a communiting only focuses on organisms. |
| When ecologists study a community they focus on ________? | They study how a species interacts and how the interactions influence the community. |
| What is an organisms habitat? | An organisms habitat is where an organisms lives. |
| Ecologists research______ in a organism? | Ecologists reserach on the organisms adaptations to alloqing organisms to overcome challenges. |
| Important factors in ecololgy. | No organism is isolated, everything is interconnected. |
| What exactly is interconnectedness? | Organisms interact with their environment; survivlal deponds on it; network of organisms connected to others/ nonliving factors |
| What is a consequence of interconnectedness? | There is disturbances and changtes my spread through the network and affect the ecosystem in changeable ways. |
| What may a model be? | a model may be visual, mathematical, or verbal.Models may contain a graph, a diagram, or a mathematical equation. |
| Why do scientists generally use models? | Scientists use models to have predictions about future behavoirs and observations of the natural world. They use them to plan and evaluate solutions for environmental issues. |
| Name 3 abiotic factors. | temperature, oxygen concentraion, sunlight, ph |
| An organism _____ whn exposed to ranges outside its ___________. | can't survive; tolerance limits |
| Acclimation occurs when? | Acclimation occurs within a lifetime of an individual organism. |
| Name some examples of resources. | food, energy, shelter, water, and sunlight. differ from each species |
| What does a species niche involve? | A niche involves a range of conditions in tolerance range, offspring, and enviornmental interaction. scientists focus on factors that may be measured. |
| Fundamental niche has __________ that realized niche doesn't. | fundamental niche contains broader range of ocnditions. |
| What does a tolerance curve show about an organism? | shows organisms comfort zone; how it adapts; what it can/ cannot adapt to and tolerate |
| How is migration similar to dormancy? | Migration is when u are trying to escape from environments unfavorable conditions. you move to another area and relocate for a short time period. dormancy is when animals are in a reduced activity, they hide underground |
| What is the difference between a fundamental and a realized niche? | Fundamental: range of conditions speies may tolerate/ range of resources it actually uses |
| Why are humans rather considered generalists than specialists? | Humans are able to adapt/tolerate to many of their enviornnments resources. humans play many intraspecific roles in their environment. humans cannot be specialists because they wouldn't be able to survive because of the enviornments tough conditions. |
| Name 6 enviornmental problems | 1. air/water pollution2. global warming; a.k.a. global climate change3.human population rising4. sixth mass extinction5. destroyment of the ozone layer6. acid rain |
| What are 3 effects of global warming? | 1. ice caps melting2. crop damage lowring biodiversityflooding main cities/ contamination of water |
| what is the symbol for oxygen? | o3 |
| What are 3 main parts of a seed? | 1. seed coating2. embryo3. cotyledon either dicot or monocot |
| What is dissolved oxygen? | Dissolved oxygen is when oxygen is dissovled in water in the enviornment. |
| What does ph measure? | PH measures whether something is an acid or a base. acid below 7; 7 is neutral; above 7 means base |
| What is the difference between the greenhouse effect and global climate change? | The greenhouse effect is natural and humans don't cause this. Greenhouse gases are emitted in air through the burning of fossil fuels. the gases then reenter the earth, fourty five perecent. global climate change is human generated. humans pollution.popul |
| 2 problems encounter as exponential increase in humans | 6th mass extinction |
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twilightfan24
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