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25 Cards in this Set
- Front
- Back
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Heterozygous |
Two alleles that are different |
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gravity |
The force of attraction between all objects, strongest when the objects have greater mass and are close together |
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independent variable |
the part of an experiment that you change |
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Organ |
groups of tissues that work together to form a working part of the body (heart, lungs, etc.) |
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Vein |
Blood vessel carrying oxygen poor blood back to the heart |
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Light Year |
the distance light can travel in a year |
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Planet |
a sphere that orbit s the Sun, and has enough gravity to "Clear its neighborhood" or pull in objects as moons |
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Artery |
blood vessel carrying oxygen rich blood to the body |
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Body system |
groups of organs that work together to perform a task for the body (respiratory system, etc.) |
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photosynthesis |
the process plants use to make food from sunlight |
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cell respiration |
the process of cells converting food into energy and getting rid of carbon dioxide |
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mitosis |
creating sex cells which are not identical, and hove only half the genetic information, used for reproduction |
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genetics |
the study of genes and heredity |
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homozygous |
two alleles for a trait that are the same (RR) |
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dominant trait |
a trait that will always be seen in the offspring |
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tissue |
groups of cells that work together, such as muscle tissue |
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constant |
a variable kept the same, so that it is a fair test |
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control |
a part of the experiment that gets no treatment, used as a comparison |
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data |
information, usually number recorded in an experiment |
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dependent variable |
the part of the experiment that is measured as results |
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cell theory |
all living things are made of cells, cells are the basic units of structure & function, all cells come from other cells |
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cell membrane |
thin sack that encloses each cell, allows things to move in and out |
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mitochondria |
powerhouse of the cell, converts the food into energy (cell respiration) |
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nucleus |
the control center of the cell, contains the DNA |
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DNA |
contains all the genetic information for a living thing |
