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science final
| Question | Answer |
|---|---|
| brain of the cell | nucleus |
| break down food to make energy | mitochondria |
| largest level of organization of all living things | biosphere |
| what organisms do cell respiration | all organisms |
| how are photosynthesis and cell respiration related | produce oxygen which is made into energy |
| where does photosynthesis occur | chloroplasts |
| where does cell respiration occur? | mitochondria |
| what gas is produced as a waste product of cellular respiration? | carbon dioxide |
| what is a cell splitting in half called? | cell division |
| compared to the parent the offspring produced from the process of asexual reproduction are | exactly alike |
| where does genetic variation come from | mutation |
| what molecule containing hereditary information can be found in the nucleus of cells | DNA |
| the process of meiosis produces | sex cells (gametes) |
| found in plant but not animal cells | cell wall |
| organelle that uses sunlight to make food | chloroplasts |
| cell theory? | 1. All living things are made of cells 2. Cells are the basic units of structure and function in living things 3. New cells are produced from existing cells |
| chloroplasts are found in what kinds of cells? | plant cells |
| water and carbon dioxide are waste products of what? | cellular respiration |
| another name for sugar | glucose |
| what organisms do photosynthesis | plants only |
| what organisms can reproduce asexually? | bacteria |
| what organisms reproduce sexually? | some plants |
| a women changes her hair color to red, why wont her kids have red hair | the women does not have genes for red hair in her sex cells |
| when an organism reproduces asexually it usually has | one parent and the same chromosome number as the parent |
| what is correct concerning hereditary information | a chromosome is composed of many genes |
| what letter does not represent to 4 nucleotides of DNA | X |
| what is genetic variation | when there are notable differences in the Dna of many individuals |
| where does variation come from? | sexual reproduction |
| what event would cause variation to occur in the body? | mutation |
| homozygous is? | 2 of the same alleles (PP) |
| Heterozygous is? | 2 different alleles (Pp) |
| whats a benifical mutation | a aleration in a segment of DNA that results in a repreoductive advantage for that organism |
| an example of an environmental factor that can cause mutation | ultraviolet radiation from the sun |
| phenotype is | a physical trait (curly hair) |
| whats not a characteristic of all living things | has a heart lungs and skeleton |
| natural selection and it evolutionary consequences provide a scientific explanation for | the fossil record of ancient life forms |
| many scientists suggest that billions of years ago life on earth began with | simple, single celled organisms |
| the theory of evolution states that | species change over time, sometimes developing into new species. |
| some honeybees have been able to survive the changes in their environment and reproduce, this is most likely because | genetic diversity in the bees |
| which statement provides evidence that evolution is still occuring at the present time? | new varieties of plant species appear more frequently in regions undergoing climatic change |
Created by:
maer7