I am studying a species of butterfly whose caterpillars often feed in groups together on the same leaf of their host plant. When they are in a group, they seem to confuse predators and avoid being picked off and eaten, but they have to share the leaf they are eating. I predict that if I put many caterpillars in an enclosure with both large and small leaves, the large leaves will attract bigger groups of caterpillars than the small leaves. Which type of study does this mean I am planning to do? Manipulative experiment Observational study Listen

I am studying a species of butterfly whose caterpillars often feed in groups together on the same leaf of their host plant. When they are in a group, they seem to confuse predators and avoid being picked off and eaten, but they have to share the leaf they are eating. I predict that if I put many caterpillars in an enclosure with both large and small leaves, the large leaves will attract bigger groups of caterpillars than the small leaves. Which type of study does this mean I am planning to do? Manipulative experiment Observational study Listen

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter44: Population Ecology

Section: Chapter Questions

Problem 3CT: Bluebirds are songbirds that, like wood ducks, nest in cavities in trees. European house sparrows,...

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Bluebirds are songbirds that, like wood ducks, nest in cavities in trees. European house sparrows, which have been introduced to North America, also nest in such cavities. Explain how the arrival of the house sparrows affected the carrying capacity for bluebirds. What affect would you expect this change have on the number of bluebirds?
The Barton Springs salamander is an endangered species found only inthree adjacent springs in the city of Austin, Texas. There is growingconcern that a chemical spill on a nearby freeway could pollute thespring and wipe out the species. To provide a source of salamanders torepopulate the spring in the event of such a catastrophe, a proposal hasbeen made to establish a captive breeding population of the salamanderin a local zoo. You are asked to provide a plan for the establishment ofthis captive breeding population, with the goal of maintaining as muchof the genetic variation of the species as possible. What factors mightcause loss of genetic variation in the establishment of the captivepopulation? How could loss of such variation be prevented? With theassumption that only a limited number of salamanders can bemaintained in captivity, what procedures should be instituted to ensurethe long-term maintenance of as much variation as possible?
Plants of the genus Fuchsia produce deep pink to red flowers thatdangle from plants, produce nectar in floral tubes, and have no scent.Based on these features, which animal is most likely to be a coevolvedpollinator of these plants?a. bee b. bat c. hummingbird d. butterfly e. moth
. SCIENTIFIC INQUIRY Scientists studying scrub jays found that“helpers” often assist mated pairs of birds by gathering food fortheir offspring.(A) Propose a hypothesis to explain what advantage theremight be for the helpers to engage in this behavior insteadof seeking their own territories and mates.(B) Explain how you would test your hypothesis. If it is correct,what results would you expect your tests to yield?
Predators are animals that hunt pray for food. If the predator is a wolf and the prey is a deer , the wolf would be considered a _____ and the deer who only eats plants would be considered a _____
Mimicry of yellowjacket wasps by clearwing moths is an example of a harmless species resembling a dangerous one. What is the ad-vantage to the moth of this form of mimicry? What is the advan-tage to a dangerous species of mimicking another dangerous species?
A student noticed that the leaves of a young maple tree in a forest were larger than the leaves of a young maple tree growing in an open field. Explain thi difference.
The accompanying photo shows a pipevine swallowtail caterpillarclimbing up a twig. (a) As the caterpillar climbs, itspotential energy is increasing. What source of energy hasbeen used to effect this change in potential energy? (b) If thecaterpillar is the system, can you predict the sign of q as thecaterpillar climbs? (c) Does the caterpillar do work in climbingthe twig? Explain. (d) Does the amount of work done inclimbing a 12-inch section of the twig depend on the speedof the caterpillar’s climb? (e) Does the change in potential energydepend on the caterpillar’s speed of climb? [Section 5.1]
You want to test whether a pesticide effectively controls (kills) yam beetles. You have access to the plants yam beetles eat, a greenhouse, the pesticide and yam beetles. How would you set up your experiment to determine if the pesticide could effectively kill the beetles? (Hint: think of your variables, what are some variable you'd control? what would you manipulate/vary? what would you measure?)
Tobacco leaves contain nicotine, a poisonous compoundthat is energetically expensive for the plant to make.What advantage might the plant gain by using some ofits resources to produce nicotine?
All of the squirrels grass oak trees and turtles in a forest would be considered a
Part A) A biologist notices that the same species of Tortoise exists in Texas and Mexico.Yet these tortoises have somewhat different life histories. This is probably due to the diverse array of__that each tortoise has with different components its own environment.a. interactionsb. conversationsc. adaptationsd. all of thesePartB.). If water amounts and food production capabilities decrease, what can happen to carrying capacity?a. increase b. decreasePart C. Alabama should be a desert but it is a lush green environment. What keeps us from being so dry?a. Hadley Cellsb. Ocean Gyresc. Mountainsd. all of the above