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Biology Final exam
| Question | Answer |
|---|---|
| What are the basic characteristics of life? | responsiveness to the environment; growth and change; ability to reproduce; and maintain homeostasis. |
| what is a testable explanation for a phenomena? | Observation, question, hypothesis, experiment, conclusion |
| Example of response to a stimulus. | eye sees food, mouth waters. |
| What is a qualitative measurement? | Qualitative data is information about qualities; information that can't actually be measured. |
| What is a quantitative measurement? | Quantitative measurement is measurement of data that can be put into numbers. |
| what are the benefits of detritivores? | Detritivores improve the nutritional value and the texture of the soil |
| What is released at each level of the energy pyramid | As little as 10 percent of the energy at any tropic level is transferred to the next level; the rest is lost largely through metabolic processes as heat. |
| What process captures and converts nitrogen to a usable form for plants | fixation |
| The main parts of the phosphorus cycle. | rain and weathering cause rocks to release phosphate ions;Plants take up inorganic phosphate from the soil; The plants may then be consumed by animals; the animals die; phosphorus goes back into soil and in waterways. |
| Percentage of salt water and fresh water on the earth. | 97.5% being salt water and 2.5% being fresh water. |
| primary succession | Primary succession is a change in vegetation which occurs on previously unvegetated terrain |
| secondary succession | Secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat. |
| Biomes of America | Desert, woodlands, tundra, prairie. |
| Causes of population increases and decreases | Hunting, surplus food, weather, natural disasters. |
| what are the values of an ecosystem. | Healthy ecosystems provide us with fertile soil, clean water, timber, and food |
| what is a mass extinction? | An extinction event is a widespread and rapid decrease in the biodiversity on Earth |
| what are the benefits of habitat corridors? | Habitat corridors allow movement between isolated populations, promoting increased genetic diversity. |
| the first law of thermodynamics | The first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic processes, distinguishing two kinds of transfer of energy, as heat and as thermodynamic work. |
| the name of light-absorbing molecules | Chlorophyll |
| what happens when haploid gametes combine | they produce a normal diploid individual |
| why cells have a limit on how big they can be | The need to be able to pass nutrients and gases into and out of the cell sets a limit on how big cells can be. |
| what is apoptosis | the death of cells which occurs as a normal and controlled part of an organism's growth or development. |
| how Down Syndrome works | Nondisjunction results in an embryo with three copies of chromosome 21 instead of the usual two. |
| what a carrier for a trait is | the person only has one chromosome of the trait instead of two. |
| homogeneous | consisting of parts all of the same kind. |
| heterogeneous | diverse in character or content. |
| what is the function of DNA polymerase during replication | These enzymes are essential for DNA replication and usually work in pairs to create two identical DNA strands from a single original DNA molecule. |
| the name of the building blocks of DNA | nucleotide |
| what are the nitrogenous base matches? | DNA: Car in Garage, CG; Apple in Tree, AT RNA: Car in Garage, CG; Apple Under tree, AU |
| the basic types of mutations | Base substitutions, Base insertions, and Base deletions |
Created by:
a.j.reyes
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