how clear the water is
What is turbidity?
fossils of organisms that were only found during very specific times in history
What are Index Fossils?
Invades cells because it needs a host to reproduce and then will kill the healthy cells. Nonliving but has genetic material. Vaccines help prevent the spread of viruses
What is a virus?
non living things that are in an ecosystem
What is an abiotic factor?
Evidence that elements can combine to form new compounds. A melting a solid B freezing a liquid C moving a piece of metal with a magnet D pouring two liquids together to create a solid
What is pouring two liquids together to create a solid?
Life in water that determines if water is safe
What is Bioindicators?
The best evidence that two continents were once connected. A They have similar types of rocks and fossils. B They are in the same stage of succession. C They exist along the same line of latitude. D They have the same climate.
What is they have similar types of rocks and fossils
outbreak of disease that affects an unusually large number of individuals within a population, community or region but not worldwide
What is an Epidemic?
an organism's role or job in the ecosystem.
What is a Niche?
used to make coins that have the same thickness, are on the left side of the zigzag line, are malleable, most are very reactive and are shiny.
What is a metal
What is Ocean?
most fossils are found in this type of rock which makes up about 75% of the rocks on the Earth's surface
What is sedimentary rock?
What are organisms that break down things called? A. Decomposers, B. Eubacteria, Genetic Engineeringl, The Lytic Cycle
What are Decomposers?
an ecological interaction where both species involved benefit, often enhancing survival, reproduction, or fitness. ex:pollinators
What is mutualism?
vertical columns on the periodic table, there are 18, have similar chemical properties in each column
What is a group?
Desalination is the process of? A Making Ocean Power B Making Wind Power C Making Fresh Water from Salt Water D Making Salad without Dressing
What is Making Fresh Water from Salt Water?
the theory that changes in the Earth's crust during history have resulted from the action of continuous and uniform process. Geological processes that occur today have also occurred in the past.
What is Uniformitarianism?
help fight bacterial infections like strep throat
What is an antibiotic?
association between two organisms in which one benefits and the other derives neither benefit nor harm. ex: a bird building a nest inside a dead tree
What is commensalism?
matter can neither be created or destroyed by physical or chemical changes, it can only change form.
What is the Law of Conservation of Matter?
Excessive amounts of Nitrates and phosphates enter a body of water through runoff. Because of this there is an increase in algae blooms which decreases dissolved oxygen levels
What is Eutrophication
have the same basic structure and embryonic origin as those found on another species and share a common ancestor.
What is Homologous structures?
Single celled, prokaryotic. Can live in a variety of climates. Most are good, but some can cause harm, they are living, and antibiotics and be used to treat.
What is bacteria?
The amount of medicine prescribed to treat an illness include competition, predation, parasitism, and disease and are triggered by and increase in population density or over crowding. They operate more strongly on large populations than on small ones.
What is density-dependent factors
2Ag + 2S ---> Ag2 + S is this balanced? if not what coefficient needs to be added to balance it and where?
no, a 2 in front of the S on the Products side.