Biology test 1 Review

Biology test 1 Review - Audesirk Biology Life on Earth 8e...

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Audesirk, Biology: Life on Earth 8e Chapter 1 An Introduction to Life on Earth STEMS 1) The group of organisms that inhabit the most inhospitable on Earth are included in the Extremophiles- “survivalist microbes” 2) Single-celled organisms that lack a nucleus are _________, and belong to the two domains ________ and ________. Bacteria-----Archaea 3) The organization of living things from smallest to largest is Levels of organization 4). Descent with modification from pre-existing forms is the definition of Evolution 5) Genes are Units of heredity that provide the information needed to control the life of the cell 6) The concept of evolution is based upon Genetic variation, inheritance and natural selection 7) A mutation is defined as A change in the basic sequence of DNA in a gene; copying mistake 8) An example of evolution would NOT include Adaptation a result in evolution 9) The most accurate meaning of the term evolution is The descent of modern organisms with modification from preexisting lifeforms; strictly speaking, any change in the proportions of different genotypes in a population from one generation to the next. 10) Which of the following are examples of adaptations? Adaptations—a trait that increases the ability of an individual to survive and reproduce compared to individuals without the trait. 11) Organisms which have low rates of mutation will also have limited ability to adapt 12) The factor most responsible for accelerating the rate of extinction of organisms today is Interactions with humans. Human activity 13) Which of the following would NOT be included in a description of all living things? Description of living things 14) Membrane-bound organelles are eukaryotes 15) An organism's ability to maintain internal stability when the external environment changes is defined as Homeostasis 16) Sweating in hot weather, metabolizing more food, and shivering in the cold are examples of Homeostasis 17) Plants on a hillside may grow at an angle towards the sky. This is an example of a living thing Responding to stimuli 18) A typical animal would be characterized by all of the following ? Eukaryotes, multicelluar, Heterotropic 19) A bacterium divides into two bacteria which are identical to, but smaller than, the original bacterium. This is an example of reproduction 20) An example of _____ is the development of a newborn kangaroo, weighing less than an ounce and about an inch long, into a 3 to 7 foot tall adult weighing over 100 pounds. growth
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21) Due to _____, humans sweat when the temperature gets hot. Homeostasis 22) A plant which is 3 inches tall and the beginning of the week, and is 4 inches at the end of week demonstrates ____. Growth 23) A paramecium will move toward a light source, demonstrating Response to stimuli 24) Carnivores found on small islands are usually smaller than related animals found on larger islands with more food resources. The difference in their size is due to Bio diversity 25)
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Biology test 1 Review - Audesirk Biology Life on Earth 8e...

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