Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Biology Midterm1,ch1
Biology Midterm1
| Term | Definition |
|---|---|
| Nature | Everything in the universe except what humans have manufactured |
| Atoms | fundamental building blocks of all substances |
| Molecules | atoms join with other atoms to form molecules. among molecules are complex carbohydrates, lipids, proteins, and nucleic acids |
| cell | smallest unit of life that can survive and reproduce on its own, given info in DNA, energy inputs, raw materials, and suitable environmental conditions |
| organism | individual that consists of one or more cells |
| population | group of individuals of the same kind of organism, or species, living in a specified area |
| community | all populations of all species in a specified area |
| ecosystem | a community interacting with its physical and chemical environment |
| biosphere | most inclusive level. encompasses all regions of Earth's crust, waters, and atmosphere in which organisms live |
| emergent property | a characteristic of a system that does not appear in any of its component parts. ex: the molecules of life are themselves not alive |
| Energy | Capacity to do work |
| nutrient | a type of atom or molecule that has an essential role in growth and survival and that an organism cannot make for itself |
| producers | acquire energy and simple raw materials from environmental sources and make their own food |
| photosynthesis | sunlight energy to make sugars from carbon dioxide and water |
| consumers | cannot make own food. get energy and nutrients indirectly, by eating producers and other organisms |
| receptor | a molecule or cellular structure that responds to a specific form of stimulation |
| homeostasis | sensing and adjusting to change, organisms keep conditions in their internal environment within a range that favors cell survival |
| dna | a nucleic acid, signature molecule of life |
| traits | individuals distinct features |
| inheritance | transmission of DNA from parent to offspring |
| reproduction | actual mechanisms where parent transmits DNA to offspring |
| development | transformation of 1st sell into adult |
| species | kind of organism |
| genus | 1st part of name, group of species that share a unique set of features |
| bacteria | single celled organism, prokaryotic (no nucleus). most ancient lineage |
| archaeans | single celled organism, prokaryotic |
| eukaryotes | with nucleus, single celled and multicelled species categorized as protists, plants, fungi, and animals |
| protists | simplest kind of eukaryote |
| fungi | mushroom |
| plants | multicelled species |
| mutations | small scale changes in DNA |
| adaptive trait | change of trait for the better |
| natural selection | |
| evolution | change in line of descent |
| critical thinking | judging info before accepting it |
| scientific theory | when any hypothesis is not disproven, consistent with evidence, helps make successful predictions |
| experiments | tests that can support or falsify a prediction |
| Sampling error |
Created by:
1392214692
Popular Biology sets