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Acc 7 Sci Final
| Question | Answer |
|---|---|
| What is the control of an experiment? | The “normal” set of conditions, or what you are comparing your results to |
| Define independent and dependent variables | Independent variable is the factor that is being tested Dependent variable is the factor that is the result |
| Is it better to use more or less data in an experiment? | More data the more accurate your results will be |
| How are multicellular and unicellular organisms different? | Multicellular organisms are made of two or more cells; are more complex; has cells with specific functions. Unicellular organisms are made of one cell; are simple; cells do not have specific jobs. |
| What is the nucleus of a cell? | the brain or control center of the cell |
| What are organelles? | tiny structures that carry out a specific function within a cell. |
| What is the stomata? | opening in the leaves where water and carbon dioxide exit |
| What is the pistil? | female reproductive organ in a flower |
| What is the stamen? | male reproductive organ in a flower |
| What is the ovary? | contains ovules; site of fertilization |
| What is the ovule? | contains an egg to be fertilized |
| What is pollination? | process of transferring pollen from the male reproductive organ to the female reproductive organ in flowers. |
| What is photosynthesis? | the process of making food for the plant |
| What is Chlorophyll? | green pigment inside chloroplast; where photosynthesis takes place |
| What are producers, consumers, and decomposers? | Producer – produces its own food (plants) Consumers – eats its food (humans, animals) Decomposers – breaks down the nutrients of food (mushrooms) |
| What is the main source of energy for all living things? | The sun. |
| What's re the different types of consumers? | Herbivore – eats only plants Carnivore – eats other animals Omnivore – eats both plants and animals |
| What is the difference between a food chain and a food web? | Food chain is unrealistic; it only shows one thing an animal can eat whereas the food web shows a variety of possible options for the organism to eat. Webs are more realistic. |
| Where is the most energy in the energy pyramid? | At the bottom with the producers. |
| What can you do to conserve resources and energy? | Recycle, carpool, don’t litter |
| What is the difference between meiosis and cell replication/division? | Meiosis is the making of the sex cells; sperm and egg. Each has half the number of chromosomes that are in a regular body cell. Cell replication is the making/replication of regular body cells. Each new cell is an exact duplicate of the original cell. |
| What would happen if a cell continued to divide uncontrollably? | Cancer/tumor |
Created by:
Avii
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