How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Chris M. Your Own Question

Chris M.
Chris M., M.S.W. Social Work
Category: Homework
Satisfied Customers: 2494
Experience:  Master's Degree, strong math and writing skills, experience in one-on-one tutoring (college English)
22285537
Type Your Homework Question Here...
Chris M. is online now
A new question is answered every 9 seconds

For Chris M 11:00 PM EST

Resolved Question:

1. Most insects use external sources of heat to achieve their operative temperature range. Heinrich's research on the sphinx moth (Manduca sexta) indicates that some insects can thermoregulate by using their flight muscles and: (Points: 5)


        using their blood as a coolant.


        decreasing their metabolic rate.


        possessing an internal respiratory system.


        using a countercurrent heat exchange mechanism.


 


 


2. The thermal stability of aquatic environments is a result of the: (Points: 5)


        high specific heat of water.


        low latent heat of vaporization of water.


        low latent heat of fusion of water.


        All of the choices are correct.


 


 


3. Animals that rely mainly on external sources of energy for regulating body temperature are called: (Points: 5)


        epitherms.


        endotherms.


        ectotherms.


        peritherms.


 


 


4. In general, reptiles are considered to be a/an: (Points: 5)


        poikilotherm.


        homeotherm.


        endotherm.


        heterotherm.


 


 


5. Mammalian and avian aquatic endotherms use all of the following mechanisms to thermoregulate except: (Points: 5)


        fat.


        internal respiratory systems.


        fur or feathers.


        concurrent heat exchange.


 


 


6. The water availability for organisms is determined by: (Points: 5)


        internal dissolved ion concentrations.


        external dissolved ion concentrations.


        movement of water down its concentration gradient.


        movement of water up its concentration gradient.


 


 


7. Aquatic organisms whose ionic concentration of their body fluids exceed that of their surroundings are: (Points: 5)


        hyperosmotic.


        hypoosmotic.


        isoosmotic.


        osmotic.


 


 


8. In order to survive in the desert, a camel will employ which of the following mechanisms? (Points: 5)


        Face away from sun


        Store water in its hump


        Shed its fur


        Allow its body temperature to rise


 


 


9. Saturation water vapor pressure: (Points: 5)


        increases with temperature.


        decreases with temperature.


        parallels vapor pressure density.


        both increases with temperature and parallels vapor pressure density.


 


 


10. A cicada will use which of the following mechanisms in order to survive hot, dry conditions of the desert? (Points: 5)


        Nocturnal behavior


        Burrowing


        Torpor


        Sweating


 


 


11. Herbivores, carnivores, and detritivores are all: (Points: 5)


        omnivores.


        autotrophs.


        heterotrophs.


        animals.


 


 


12. Which kingdom has the higher carbon to nitrogen ratios? (Points: 5)


        Plantae


        Animalia


        Monera


        Fungi


 


 


13. The main force in the development and refinement of prey defenses is/are: (Points: 5)


        nutrition.


        predators.


        the prey themselves.


        mate choices.


 


 


14. Several studies indicate that environmental conditions dictate plant biomass allocation; plants grown in infertile soils will allocate more energy into __________ biomass. (Points: 5)


        leaf


        stem


        root


        flower


 


 


15. Organisms which synthesize organic compounds using CO2 as a carbon source and inorganic chemicals as an energy source are: (Points: 5)


        chemosynthetic heterotrophs.


        chemosynthetic autotrophs.


        photosynthetic autotrophs.


        photosynthetic heterotrophs.


 


 


16. Fitness is defined as the: (Points: 5)


        health of an individual organism.


        ability of an organism to adapt to new environmental situations.


        quality of offspring produced.


        number of genes contributed by an individual to the next generation.


 


 


17. Secondary sexual characteristics are often considered a handicap because of increased: (Points: 5)


        predation.


        competition.


        parasitism.


        infertility.


 


 


18. An instance of __________ occurs when the plumage of male birds becomes increasingly brighter over time. (Points: 5)


        contrasexual selection


        intrasexual selection


        intersexual selection


        multisexual selection


 


 


19. Sociality is generally NOT accompanied by: (Points: 5)


        cooperative feeding.


        defense of the social group.


        unlimited reproductive opportunities.


        restricted reproductive opportunities.


 


 


20. When investigating haplodiploidy, all of the following statements were found to be true EXCEPT: (Points: 5)


        siblings are more genetically related than an individual's own offspring.


        males have one set of chromosomes.


        kin selection is not implicated.


        males develop from unfertilized eggs.

Submitted: 2 years ago.
Category: Homework
Expert:  Chris M. replied 2 years ago.

Hello Roger,

 

I'll try to post answers to this set shortly.

Expert:  Chris M. replied 2 years ago.
THIS ANSWER IS LOCKED!
You can view this answer by clicking here to Register or Login and paying $3.
If you've already paid for this answer, simply Login.
Chris M., M.S.W. Social Work
Category: Homework
Satisfied Customers: 2494
Experience: Master's Degree, strong math and writing skills, experience in one-on-one tutoring (college English)
Chris M. and 8 other Homework Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
< Last | Next >
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
  • He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here. Diane Dallas, TX
 
 
 

Meet The Experts:

 
 
 
  • Manal Elkhoshkhany

    Tutor

    Satisfied Customers:

    4520
    More than 5000 online tutoring sessions.
< Last | Next >
  • http://ww2.justanswer.com/uploads/BU/BusinessTutor/2012-2-2_115741_Kouki2.64x64.jpg Manal Elkhoshkhany's Avatar

    Manal Elkhoshkhany

    Tutor

    Satisfied Customers:

    4520
    More than 5000 online tutoring sessions.
  • http://ww2.justanswer.com/uploads/LI/lindaus/2012-6-10_04811_IMG20120609164157.64x64.jpg Linda_us's Avatar

    Linda_us

    Finance, Accounts & Homework Tutor

    Satisfied Customers:

    3121
    Post Graduate Diploma in Management (MBA)
  • http://ww2.justanswer.com/uploads/ComputersGuru/2010-02-13_051118_Photo41.JPG LogicPro's Avatar

    LogicPro

    Engineer

    Satisfied Customers:

    3035
    Expert in Java C++ C C# VB Javascript Design SQL HTML
  • http://ww2.justanswer.com/uploads/lanis/2009-4-1_233717_phput9xef_c1pm.jpg Lani S.'s Avatar

    Lani S.

    Tutor

    Satisfied Customers:

    2457
    Registered Nurse, Internet Researcher, Private Tutor
  • http://ww2.justanswer.com/uploads/chooser77/2009-08-18_162025_Chris.jpg Chris M.'s Avatar

    Chris M.

    M.S.W. Social Work

    Satisfied Customers:

    2341
    Master's Degree, strong math and writing skills, experience in one-on-one tutoring (college English)
  • http://ww2.justanswer.com/uploads/JawaadAhmed/2009-6-27_12137_SIs_SHadi.jpg F. Naz's Avatar

    F. Naz

    Chartered Accountant

    Satisfied Customers:

    1975
    Experience with chartered accountancy
  • http://ww2.justanswer.com/uploads/JK/jkcpa/2011-1-16_182614_jkcpa.64x64.jpg Bizhelp's Avatar

    Bizhelp

    CPA

    Satisfied Customers:

    1873
    Bachelors Degree and CPA with Accounting work experience