ANS 001 Exam 1.pdf - ● ● ● ● ● ● ● ● Domestication provides ○ Mutual benefit to human and animals ○ Adaptation to humans and their

ANS 001 Exam 1.pdf - ● ● ● ● ● ● ● ●...

This preview shows page 1 - 3 out of 11 pages.

Domestication provides Mutual benefit to human and animals Adaptation to humans and their environment Improved performance (growth) Controlled and improved reproduction Selection for certain “traits” alters evolution 14000 years ago the wolf was first domesticated Speculated 1st reason: mutual benefit of terms of cleaning up scraps Try to keep down the trash If time gets tough could be eaten Trait - general characteristic Genetic basis Phenotype (P)- outward characteristic of an organism Not just animals, but all organisms We can evaluate and describe P in a variety of ways Can and will be species, breed, country or application specific We can “measure” certain “traits’ along a continuum Quantitative traits Ex. weight, height Other traits may not be measurable, but can be described Qualitative traits Ex. behavior, personality Phenotype = Environment (E) + Genotype (G) Environment - all the non-genetic factors influencing phenotype Not just limited to “environment Genotype - the result of the actions of individual genes alone (regions of DNa) and their combined effects Herbivory - grazing Biodiversity and Nutrient Cycling - a large proportion of domesticated animals on the planet utilizes poor-quality feedstuffs Nutrition → animals provide a significant amount of high-quality protein for humans Animal products provide ~18% of all energy Provide ~40% of all protein Approx. 66% of all protein consumed in US is animal derived Economics → the value of livestock production is significant ~$1.4 trillion globally. In the US worth about $180 billion Social issues → animals are our companions, but their abuse also reflects major social issues of abuse and crime Health and disease → animals are vectors for “zoonotic” diseases. Animal health is a major economic and personal issue Zoonotic diseases - transmission of virus from animal to human Direct - saliva Indirect - mosquito
Image of page 1
Culture / Religion - animals mean different things to different people around the world Entertainiment - use animals for human excitement Transportation - there is still a alrge dependence on animals for transport and draft, esp in developing countries Fiber - not all clothing and carpet is made out of plastic Companionship - the bond that humans make with animals is often closer than with other humans More children in the US will grow up with a companion vs. having married parents Human-animal conflicts - we dont always get along with animals, including those we have domesticated Biotechnology - animals are vital for human and animal health Advances also may be the only way to feed a growing population Conservation - wild animals, their a part in a global ecosystem and the effect of humans Ecology - wild animals in the future, as part of our global system By-products - waste not, want not ____________________________________________________________________________ SHEEP Latin name: ovis aries Class: mammalia
Image of page 2
Image of page 3

You've reached the end of your free preview.

Want to read all 11 pages?

  • Fall '08
  • Famula,T

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Ask Expert Tutors You can ask You can ask ( soon) You can ask (will expire )
Answers in as fast as 15 minutes