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bio lab 9 self asses
| Question | Answer |
|---|---|
| In our random sampling lab, we used the roll of dice method because it allowed us to choose our sampling plots ______ | Randomly |
| In order to use random sampling technique, the area being studied should be divided into plots of equal _______ | Area |
| When conducting a mark and recapture study, you accidentally decreased the life expectancy of the marked individuals. How will this affect your population estimate? | The population estimate will be too large |
| Which of the following patterns of dispersal will result in a more accurate number when using random sampling? | Even |
| Random sampling technique will provide you with the exact number of individuals in a population in a defined area. True or False? | False |
| The study of living things and their relationship to the environment | Ecology |
| The environment includes _______ (living) components | Biotic |
| The environment includes _______ (non-living) components | Abiotic |
| Deserts, rainforests, and planes are examples of _______ | Ecosystems |
| Producers of an ecosystem such as plants | Photoautotrophs |
| Ecosystems require specific amounts of sunlight, nutrients, and ________ | Water |
| Bacteria, fungi, plants, and animals create a balanced ________ that all members of the community rely on | Food Chain |
| Energy from the ______ is transferred through the ecosystem by passing through various trophic levels | Sun |
| ________ producers, mostly plants make up the entire base of the _______ and absorb energy from the sun | Primary; Pyramid |
| The _______ are a source of energy for layers of consumers above it | Primary Producers |
| Population density are determined by taking a ______ | Census |
| Census is the total number of individuals in a ______ area | Defined |
| Scientists conduct a _____ sample to come up with a population estimate | Random |
| Organisms that have a defined territory show a _____ distribution, where they are evenly spaced and equidistant from each other | Even/Uniform |
| Organisms that scatter in an unpredictable pattern show a _____ distribution | Random |
| Organisms like schooling fish are grouped together and show a ________ distribution | Clumped |
| A percent of error equals _____ population minus _____ population divided by actual population | Actual; Estimated |
| _____ error indicates how accurate the population estimate is | Percent |
| An acceptable percent error is less than ____ percent | 5 |
| Typically the ______ random sample, the more accurate the population estimate | Larger |
| In the population density lab (#9), the ______ study area had the higher percent error because there were spots ______ any plant | Clumped; Without |
| 3 environmental facts that might cause the distribution patters of plants are:______, dropping of seeds straight down and empty patches of ____ that may not be good for growing | Wind; Soil |
| Because determining population density is challenging when organisms move from place to place, scientists use _____ and _____ procedures to ESTIMATE population | Catch; Release |
| Catch and Release is also known as ______ and _____ | Mark; Recapture |
| If you decrease the life expectancy of your individuals in a mark and recapture, your population estimate would ______ because the number of _______ individuals decreased | Increase; Marked |
Created by:
scarangelo
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