Skills Worksheet Concept Review - PC\|MAC

1 Copyright by Holt, Rinehart and Winston. All rights Environmental Science1 The Organization of LifeMATCHINGIn the space provided, write the letter of the term or phrase that best matches thedescription. NameClassDateConcept ReviewSkills individual living group of various species that live in thesame place and interact with each or once living part of an survival and reproduction thatresults from the presence or absence ofparticular the organisms living in an area andtheir physical in the genetic characteristics of a population from one generation tothe the members of the same species thatlive in the same place at the same part of an of one or more organisms to tolerate a particular chemical

2 Designed to kill of organisms that are closelyrelated and that can mate to producefertile offspringMULTIPLE CHOICEIn the space provided, write the letter of the term or phrase that best completeseach statement or best answers each kind of habitat does a red backed salamander need to survive? forest top of a forest desert rockCopyright by Holt, Rinehart and Winston. All rights Environmental Science2 The Organization of LifeNameClassDateConcept Review of the following king-doms include organisms thatcan make their own food?

3 And and and and Chihuahua is a dog thatexists because have promoted theevolution of insects that areresistant to insecticides to control pestswith insecticides that the more of the following is nottrue of an adaptation? is an advantage to anorganism in increases an organism schance of increases an organism schance of decreases an organ-ism s chance of of the following isnotone of the kingdoms ofliving things? way that bacteria andfungi are important to theenvironment is that the sun s energy tomake their own a major food sourcein many down are importantprotists because they are theinitial source in most in most ocean andfreshwater in the (a) and (b) angiosperms animals in for to carry pollenand disperse of the following char-acteristics is shared by bac-teria, fungi, and plants?

4 Usually have have cell are single have the ability tomake their own hawks would see the dark grayrabbits more easily than the whiterabbits when snow was on the groundbecause the white rabbits wouldblend in. Therefore, the hawks proba-bly ate more gray rabbits than whiterabbits. More white rabbits lived most months the remainingdark gray rabbits would blend in withthe surroundings better than whiterabbits would. Hawks would eatfewer dark rabbits than white rabbit population would changeto include more gray rabbits becausethey would more likely survive rabbits are born than can sur-vive.

5 The rabbits in a population dif-fer in the traits that they have. Someof these traits give rabbits advantagesthat help them survive. Rabbits canthen reproduce and pass these traitson to their offspring. Each generationof rabbits has proportionately moreorganisms with advantageous OR ; although they have very dif-ferent characteristics, both dog breedsare a result of thousands of years ofartificial selection. Humans bred theancestors of today s wolves to producethe variety of dogs we have and different kinds of dogs areclosely ; antibiotics may kill manybacteria, but the bacteria that remainare more resistant to the use of antibiotics promotes theevolution of resistant populations ofbacteria.

6 Over a period of time, dis-eases can t be controlled as effectivelywith the same antibiotics. This makesdiseases harder to treat and more peo-ple may get ; by definition, a populationis made up of all the members of thesame species that live in the sameplace at the same time. A communityis made up of all the populations inthe same place at the same time. Iforganisms are members of the samespecies and live in the same commu-nity, they all are part of the are difficult to control becausethey are small and can get into a homeeasily, they don t need much food tosurvive, they move quickly and canhide in small spaces easily, they repro-duce quickly, and they can becomeresistant to ; all ecosystems are intercon-nected.

7 Answers may vary. Sampleanswer: Humans in the city rely onresources, such as water and food,from other ecosystems. Anything that affects water, air, land, or livingthings can affect the city s food andwater supply. Also, air in the citycomes from other ecosystems. A Copyright by Holt, Rinehart and Winston. All rights Environmental Science94 The Organization of LifeAnswer KeyTEACHER RESOURCE PAGE