Pond ecosystem - Study guides, Class notes & Summaries

Anthropogenic eutrophication - whereby water bodies, such as lakes, estuaries, or slow-moving streams receive excess nutrients that stimulate excessive plant growth (algae, periphyton attached algae, and nuisance plants weeds). This enhanced plant growth, often called an algal bloom, reduces dissolved oxygen in the water when dead plant material decomposes and can cause other organisms to die arrival of captain cook - 1778 bimagnification - small eats poison, poison is stronger in predator ...

List 5 roles plants play in a healthy aquatic ecosystem - ANSWER-1. Producing oxygen for other organisms 2. Preventing shoreline erosion 3. Lessening excess nutrients during the growing season 4. Stabilizing the lake bottom 5. Providing food and habitat for fish, waterfowl, and other aquatic animals List 6 ways that excessive plant growth can adversely affect the ecology and uses of a water body - ANSWER-1. Harm the ecology of an aquatic ecosystem 2. Curtail or prevent recreational wate...

BIOL 101 – Straighterline Questions and Answers Already Passed The smallest unit that has all of the characteristics of life is the Cell Nutrient molecules are used to build cellular structures or for energy. This best represents which characteristic of life? Living things acquire materials and energy from the environment. Organs are composed of tissues, which are composed of cells. This is an example of which characteristic of life? Living things have levels of hierarchical orga...

Define the term biodiversity - diversity of important ecological entities that span multiple spatial scales, from genes, to species to communities - biological diversity encompasses all species of plants, animals, and microorganisms, and the ecosystems and processes of which they are part Explain how the terms species, richness, evenness, and diversity are related Species richness: a count of all the different species in a prescribed area Species evenness: a measure of the rareness or c...

It is believed that an asteroid or comet impact caused the extinction of the dinosaurs 65 million years ago. What are the two major lines of evidence supporting this theory? - There is a layer of clay at the time of the dinosaurs with high concentration of iridium from asteroids in it, and scientists have found a large impact crater that hit Earth 65 million years ago. . Of the four Earth biomes shown below, which has the greatest number of species? - Rainforest A student collects the foll...

Content Exam Practice Test-Texas Teachers Questions and Answers During the early 1900s, scientists performed an experiment which identified the existence of a substance other than DNA was involved in protein synthesis. Since they knew DNA could not be found outside the nucleus, their experimentation identified the site of protein synthesis in the cytoplasm. Which of the following was the newly identified molecule responsible for transporting information from the nucleus to the site of protein s...

Content Exam Practice Test-Texas Teachers Questions and Answers During the early 1900s, scientists performed an experiment which identified the existence of a substance other than DNA was involved in protein synthesis. Since they knew DNA could not be found outside the nucleus, their experimentation identified the site of protein synthesis in the cytoplasm. Which of the following was the newly identified molecule responsible for transporting information from the nucleus to the site of protein s...

Content Exam Practice Test-Texas Teachers Questions and Answers During the early 1900s, scientists performed an experiment which identified the existence of a substance other than DNA was involved in protein synthesis. Since they knew DNA could not be found outside the nucleus, their experimentation identified the site of protein synthesis in the cytoplasm. Which of the following was the newly identified molecule responsible for transporting information from the nucleus to the site of protein s...

Intro to Biology Straighterline Exam Questions and Answers 100% Pass Organs are composed of tissues, which are composed of cells. This is an example of which characteristic of life? - Answer- Living things have levels of hierarchical organization. Nutrient molecules are used to build cellular structures or for energy. This best represents which characteristic of life? - Answer- Living things acquire materials and energy from the environment. The smallest unit that has all of the characte...

What is an ecosystem? correct answers A natural system made up of plants, animals and the environment What does the term 'biotic' mean? correct answers Living features of an ecosystem such as plants and fish. What does the term 'abiotic' mean? correct answers Non-living environmental factors such as climate, temperature and light. What would be an example of a local/small scale ecosystem? correct answers Pond, hedgerow or woodland What would be an example of a global scale ecosys...