Landin BIO 181 - Test 1 well answered

Landin BIO 181 - Test 1Explain why life is difficult to define. - correct answer Life is a gradation. Landin's def. ability for an organism to maintain homeostasis. Provide examples of traits required (not NOT required for "life" - correct answer required: metabolism and the ability to maintain homeostasis not required: reproduction, growth, ability to move Relate "life" to homeostasis, metabolism, energy, and proteins - correct answer Homeostasis requires energy which comes from metabolism which is from chemical reactions in proteins. Energy is essential to life. List and explain the benefits and drawbacks of high/low metabolism; explain what can happen if an organism has extra energy or not enough - correct answer high benefits: move fast, react. fast, grow fast high negs: uses more energy, fewer resources low benefits: uses less energy, more resources available, spend less survive longer low negs: move slow, react slow, grow slow