 | Term | Definition |
| |
science |
atudy of the natural word |
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hypothesis |
a proposed scientific explanation for a swt of observations |
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theory |
an idea you come up with after researching your hypothesis |
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observation |
the process of gathering information ni a careful, orderly way |
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data |
information gathered during your observaton |
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inference |
a logical interpretation, based on your prior knoledge |
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spontaneous generation |
a (disproven) hypothesis stating that life could rise from noliving matter |
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manipulated variable |
a variable that is deliberatley changed |
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responding variable |
the variable that is observed and that changes in result to the manipulated variable |
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biology |
the study of life |
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cell |
collection of living matter enclosed by a barrier that seperates the cell from its surroundings. smallest units of an organism that are considered alive. |
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stimulus |
a signal to which organisms respond |
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eukaryotic cells |
cells that contain a nuclei(true-nuclei) |
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prokaryotic cells |
cell that do not contain a nuclei |
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movement |
plants turn toward the light and their roots grow down into the soil |
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reproduction |
the only life process that you dont need to do to stay alive |
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sensitivity (regualtion) |
living things responding to change and noticing changes |
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nutrition |
food is used to provide energy. animals eat plants and other animals |
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excretion |
the removal of waste substances. plants and animals need to do this. |
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respiration |
plants and animals use the oxygen in the air to tur nfood into energy |
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growth |
an increase in cell size or number. |
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namonic device used to remember the life processes |
MRS. NERG |
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matabolism |
all the chemical reactions occuring within the cells of an organism. constant release of energy |
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homeostasis |
maintenace of constant internal conditions in a chaotic world |
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levels of organisation |
calls>tissue>organ>organ system>>organism |
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organism |
individual living thing that is made up of cells |
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population |
group of organisms of all one species |
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biological community |
all populations of different species |
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ecosystem |
populations of plants and animals that interact with abiotic components of the area |
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biotic |
living organism that inhabit an envirnment |
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abiotic |
non-living factors of an organiams enviornment |
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bioshere |
protion of the earth that supports life |
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lysosome |
contain digestive enzymes |
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chloroplasts |
site of photosynthesis |
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endoplasmic reticulum (ER) |
interconnecting channels for storage, synthesis, and transprot of substances |
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cell wall |
nonliving structure for support and protection of the cell |
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cytoplasm |
watery environmeny containg other organelles, where many biochemical activties occur |
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nucleus |
contains genetic materal--control center of the cell, also regulates all cell activity |
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cell membrane |
double layer that conrols transport of materials into and out of the cell |
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ribosome |
site of protein synthesis |
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vacuole |
organelle that stores important cell material |
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golgi complex |
synthesizes, packages, and secretes cellular products |
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nucleolus |
found in nucleus--involved with synthesis of ribosome |
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mitochondria |
site of cellular respiration--power house of the cell |
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centriol |
cylindrical structures that function during cell division |
