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Fishing Unit 5
From Sun to Sunfish
| Question | Answer |
|---|---|
| What are basic survival needs? | things that all living things need to survive and reproduce |
| what is Population? | A group of one kind of organisms living in the same place at the same time |
| What is an example of a population? | A group of bluegill living a pond |
| what is Community? | A group of populations living in the same place |
| What is an example of a community? | Population of bluegill and bass in a pond |
| what is a Habitat? | The physical environment that a species needs to survive |
| Why do species need a habitat? | -Protect itself from predators. -Reproduce. -Gather food. -And Hunting |
| what is an example of a habitat? | trout need Cold Water water with High dissolved oxygen content in order to survive. |
| who were trout brought to Missouri? How are they holding up today? | Trout were brought to Missouri by Fisherman and are not well adapted to conditions here. |
| Many aquatic plants and animals have very specific _______. | Needs |
| what happens if 2 animals/fish wanted the same habitat? | they may compete for it |
| Within a community every species has a particular _______. | niche |
| What does a species’ niche include? | It's way of getting food the habitat it needs, and the role it performs in the community |
| can 2 species occupy the same niche for long? | no |
| Why don't organisms have the capacity to produce populations of infinite size? | because resource are limited |
| What happens when there is not enough of something to go around? | Species will fight for whatever resource is scarce |
| what do the limits on biotic living and abiotic nonliving resources determine? | the environment’s carrying capacity. |
| what is an example of predator and prey? | Bluegill compete with one another for food they also compete with green sunfish, since both species feed on the same prey. |
| What is carrying capacity? | The maximum number of individuals in a particular population that an environment can support |
| What does it mean when it is below its carrying capacity? | There are more resources than a particular population use. Individuals can grow and reproduce |
| What does it mean when it is above its carrying capacity? | When there are more individuals in a population than the environment can support |
| what will happen when an environment exceeds its carrying capacity? | individuals may starve, get sick, or be forced to move to a place that can support them. |
| what is a sign that an environment has exceeded its carrying capacity? | If a population doesn’t have enough food or habitat to sustain itself |
| what do aquatic communities rely on? | sunlight |
| what are plants? Why? | producers because they produce their own food |
| what are primary consumers? | Animals that eat plants or they are called herbivores |
| What is an example of a primary consumer? | Muskrat, pond snail |
| what are 2ndary consumers? | eat primary consumers and can be carnivores or omnivores |
| what are carnivores? | they kill and eat other animals |
| what are omnivores? | they eat both plants and animals |
| what are decomposers? | bacteria and fungi feed on non-living organic matter, in the process breaking it down into simple molecules that plants can use |
| What is a food chain? | Shows how energy moves from producers to primary consumers and on so… |
| What is a food web? | Shows how different food chains are interconnected |
| Taking out any _____ in a food web may upset the balance of the whole. | link |
| what is an energy pyramid? | another way to look at feeding relationships. Consumer levels are shown as trophic levels. Animals lose energy doing tasks such as hunting and keeping their bodies warm. |
| An environment can support only a certain amount of life at each step of the energy pyramid. Why? | The higher up the energy pyramid an animal feeds, the fewer of this kind of animals the environment can support |
| what are predator and prey? What do they do for eachother | Predator and Prey are are competing against one another for survival; the predator is seeking food and the prey is trying to keep from being eaten. |
| what do Predator/Prey relationships do for the community? | balance numbers within a group |
| How do predator/prey relationships work? | Predators keep populations of prey below their carring capacity. At the same time the amount of prey available can limit the number of predators that can live there |
| what is the driving force of natural selection | Competition between members of a species |
| what is natural selection? | it ensures that only the best-adapted species Survive and reproduce. |
| what is the biggest threat to aquatic communities? | Human-caused habitat destruction, or invasive species |
| what is invasive species? | a species that has been brought (usually by human action) to a place where it did not live naturally |
| Why are invasive species bad? | They may compete with native species for habitat for food. This competition could make it harder for the native species to survive |
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magicPop
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