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Bio MT 2015
Terms from Bio Midterm 2015
Question | Answer |
---|---|
Technology to engineer new type of bacteria | genetic engineering |
Wet mounts on microscopes are best for | live speciums |
Recently developed technology to help determine history of human ancestry | DNA sequencing |
Biology | the study of life |
Heredity | The passing of traits from parents to offspring is called |
theory | A unifying explanation for a broad range of observations |
Steps of Scientific method (5) | observations, hypothesis, predictions, controlled testing, conclusions. |
independent variable | The variable in an experiment that you manipulate |
dependent variable | the one that is measured |
cell | basic unit of life |
mutation | results in new traits appearing in a species |
reproduction | The process by which organisms make more of their own kind is called |
evolution | All living things maintain a balance within their cells and the environment through this process |
Mutations can be passed from generation to generation if | they occur in sex cells. |
7 properties of life | made of cells, metabolism, reproduction, growth, response, homeostasis; DNA or RNA (very shortened - know what these mean!) |
observation | A scientist noticed that the number of salamanders in ponds in the Rocky Mountains was declining. |
experiment/experimenting | Scientific hypotheses are most often tested by the process of: |
homeostasis | All living things maintain a balance within their cells and the environment through the process of: |
Cells are protected by: | lipid bi-layer membrane |
all living organisms are composed of | cells |
hypothesis (2 definitions) | An educated guess OR testable possible explanation of an observation |
genes | a region of a chromosome that codes for a specific trait |
Normal cells become cancer cells when | they lose their ability to control their cell division, i.e. control mechanisms fail and the cells divide uncontrollably. |
carcinogens | Substances that are thought to cause cancer |