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When a house's drainpipes are backed up from tree roots, homeowners can blame which plant characteristic? geotropism hydrotropism phototropism thigmotropism
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Asked 10/1/2012 6:26:19 AM
Updated 6/20/2014 5:37:59 PM
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User: When a house's drainpipes are backed up from tree roots, homeowners can blame which plant characteristic? geotropism hydrotropism phototropism thigmotropism

Weegy: 1. phototropism , the growth of a plant in response to sunlight 2. geotropism , movement or growth of a plant in response to gravity 3. hydrotropism , the growth of plants toward water 4. [ [ thigmotropism , movement or growth of a plant in response to touch 5. tropism plant growth caused by an external stimulus ] ]
piso|Points 182|

User: Cnidarians were one of the first groups of animals to develop _____. body cavities endoskeletons jointed appendages specialized tissues Question #10Paragraph Score: Give reasons why viruses are not considered alive. Use complete sentences. Upload Answer File Max File Size : 10MB Accepted File Type : csv,doc,pdf,xls,xlsx,docx,jpeg,jpg,ppt,pptx,txt,rtf,mdb,accdb,pub,odf,odt,ods,odp File Actions No File UploadDelete Question #11MultipleSelect Score: Select all that apply. Select ways in which the state of dynamic equilibrium of an ecosystem can be altered. floodswhen a species of plants dies outheavy rainfall Question #12TextMultipleChoice Score: The most common type of mating among vertebrates is monogamycommensalismpolygamypolygyny, whereby one male mates with multiple females. Question #13MultipleChoice Score: As plants moved from water to land, they developed _____. photosynthesisvascular tissuethe ability to form rootsa greater number of chloroplasts Question #14TextMultipleChoice Score: In nerve cells, the neuronaxonnucleusdendrite is responsible for transmitting impulses away from the cell body. Question #15MultipleChoice Score: What kind of tissue provides plants with the first line of defense against damage and disease? dermal tissueground tissuevascular tissue Question #16MultipleSelect Score: Select all that apply. Select the descriptions, plants, and animals that are characteristic of the temperate deciduous forest Biome. maplesoakssprucesdeerfoxesdriest biometrees that shed leaves in wintervery high species diversityfour distinct seasons Question #17MultipleChoice Score: New York City has 2,181 inhabitants per square mile. The state of Alaska has 1.03 inhabitants per square mile. Ecologists would say Alaska has a low _____. exponential growthpopulation densitybirth ratecarrying capacity Question #18MultipleSelect Score: Select all that apply. Select the major diseases caused by viruses. chicken poxmumpspoliotuberculosis Question #19Matching Score: Match the following terms with their definitions or examples. 1. humans have 23 pairs chromosomes 2. a change in the genetic information code genes 3. specific nucleotide sequences in a chromosome mutation 4. height, eye color, hair color traits Question #20Matching Score: Match the following animals with their respiratory systems. 1. whales tracheal system 2. spiders gills 3. clams lungs Question #21MultipleChoice Score: All ecosystems are made up of which two factors? plants and animalshabitats and biomesbiotic and abioticherbivores and carnivores Question #22MultipleChoice Score: Starfish and fish possess _____. endoskeletonsexoskeletonshydroskeletonsaqueous skeletons Question #23MultipleChoice Score: The majority of organs for asexual reproduction in vascular plants are _____. found in the stemfound in flowersthe pistil and stamenboth male and female Question #24TrueFalse Score: Mutations are the ultimate source of evolutionary change. TrueFalse Question #25MultipleChoice Score: The endocrine and exocrine glands secrete _____ in vertebrates. digestive juiceshormonessalivaexcretory waste Question #26MultipleChoice Score: Plants have reached the adult stage when _____. they reach their full heightthey can begin photosynthesizingtheir leaves are fully formedthey are able to reproduce Question #27TextMultipleChoice Score: Protists reproduce sexuallyeither asexually or sexuallyasexually. Question #28MultipleChoice Score: Scientists believe that whales might have evolved from land mammals because _____. early whale embryos have leg budswhales are the largest mammals in the oceanwhales and mammals have similar brain structureswhales can swim as fast as jaguars can run Question #29TrueFalse Score: A comparative behaviorist would study animals in their natural habitat. TrueFalse Question #30MultipleChoice Score: The pair of nitrogenous bases in DNA is held together with what kind of bond? hydrogen bondnitrogen bondcovalent bondphosphate bond Question #31MultipleChoice Score: If the father is not colorblind, but the mother is a carrier for the disorder, then _____. their male offspring will be colorblindtheir female offspring will be colorblindeither their male or female offspring will be colorblindnone of their children will be colorblind Question #32MultipleChoice Score: If you flipped two dimes at the same time, what are the chances that each dime would come up heads? 10%25%50%80% Question #33MultipleChoice Score: The coelacanth is noteworthy in the process of evolution because _____. it was the first fish to live on landits fossil remains suggests that fish and birds have common ancestorsit is still alive today but has remained un-evolved for thousands of yearsit is one of the few organisms that is found on every continent Question #34MultipleChoice Score: The picture below shows what kind of plant root? adventitious rootfibrous roottaprootvascular root Question #35MultipleSelect Score: Select all that apply. Which statements about rice are true? Rice is eaten by more than half of the world.Rice can be used in cereals and soups.Rice grows in moist environments.Rice is the world's most widely grown food crop. Question #36MultipleChoice Score: The name Cnidaria indicates that these animals probably _____. are hermaphroditeshave stingerslive undergroundare capable of flight Question #37MultipleChoice Score: Our blood could be poisoned by accumulated wastes if which organ stopped functioning? bladderbowelskidneylungs Question #38MultipleChoice Score: If a plant with a dominant gene for tallness is crossed with a plant with a recessive gene for tallness, the offspring _____. will always be tallwill always be shorthave a 50% chance of either being tall or short Question #39MultipleChoice Score: Red algae are important _____. as a food source for fishin the production of oxygen for the airin the formation of coral reefs Question #40MultipleChoice Score: The number 2, in the graphic below, is pointing to which part of the brain? cerebrumcerebellumbrain stem Question #41MultipleChoice Score: Bacteria lack _____. the ability to moveorganellesany commercial significancethe ability to conduct photosynthesis Question #42TrueFalse Score: Your knee has a ball-and-socket joint. TrueFalse

Weegy: The answer to the first question is endoskeletons.
Expert answered|danichix|Points 73|

Question
Asked 10/1/2012 6:26:19 AM
Updated 6/20/2014 5:37:59 PM
1 Answer/Comment
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When a house's drainpipes are backed up from tree roots, homeowners can blame the plant characteristic of HYDROTROPISM (the roots seek water).
Added 6/20/2014 5:37:59 PM
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