Life Science
What is the purpose of an experiment?
The purpose of an experiment is to put a hypothesis to the test.
Compare and contrast elements and compounds.
An element is a substance composed of atoms with the same atomic number. A compound is formed when atoms of two or more different elements are chemically bound together.
Appendicular Skeleton
Upper limbs, Lower Limbs, Pelvis, pectoral girdle
How do plants make their food?
Photosynthesis
What is an abiotic factor?
a non-living part of the environment
What is a carnivore
animal that eats meat
when a pond is slowly turned into a grassy meadow
Name at least three natural disturbances that can change a community
eutrophication, fire, volcano eruptions, hurricanes, earthquakes, tsunamis
A testable informed prediction
Cell Membrane
The outer layer that surrounds the cell and controls what enters and leaves
What are the importance of plants to all living things
They are the primary source of food
What is commensalism
a long term relationship between two species where one benefits and the other is unaffected
What is an herbivore
animal that eats only plants
What is an estuary
Where salt water and fresh water meet
Describe the process that transforms a pond into a level meadow.
Eutrophication
What is general revelation?
How God reveals himself to all people through nature
What is chloroplast
An saclike organelle with a double membrane that serves as the site of photosynthesis
What is homeostasis?
The ability to keep something constant when outside circumstances are changing
What things do you need for photosynthesis to occur?
Carbon dioxide, water, and light
What is ecology
stduy of how organism interact with their environment
Give an example of a decomposer
bacteria, termites, earthworms, millipedes
What is an invasive species?
A new non-native species that threatens
Describe some natural disturbances that leave an area without soil.
A volcano eruption like Krakatoa in 1883 can leave a place devoid of animals, plants, and soil. A glacier receding from the scoured land leaves only barren ground.
What s a scientific fact?
statement, supported by a lot of scientific evidence, that is correct so far as we know
What is cytoplasm
Fluid that fills cells and serves important functions
a white fatty substance that insulates nerves/neurons
What are the products of photosynthesis?
Glucose/sugar and oxygen
What is a habitat
a place where an animal lives
What is a primary consumer
What is a pioneer species?
the first organism to grow in an area
List some ways that humans damage ecosystems.
Humans change ecosystems by harvesting timber, building, farming, engaging in industrial activity, and disposing of waste
Are scientific facts true?
We do not speak of scientific statements as being true because they are not truth claims
What is an enzyme
Speeds up chemical reactions
diaphragm
What do we as humans benefit from plants?
food and oxygen
What is mutualism
Where two or more species benefit from each other
What are trophic levels
The position it occupies in the food chain
What is the difference between climate and weather?
Climate long term range, Weather changes day to day
List some biomes where temperature varies greatly, even within a day.
Desert biomes often experience major temperature changes within a single day
what is direct experience
Seeing/Experiencing something for yourself
What is mitochondria
powerhouse of cells
List the four broad categories of tissues the body is composed of.
epithelial tissue, connective tissue, muscle tissue, and nervous tissue.
There are two types of reactions in the process of photosynthesis name them
Dark and Light Reactions
parasitism
the parasite benefits at the expense of the other
Animal that eats both plants and animals
What are the five major types of biomes?
Aquatic, grassland, forest, desert, and tundra
Name two global cycles that are supported by marine biomes
carbon cycle and water cycle
How does a theory become widely accepted?
Theories must provide the means for developing new hypotheses, which are tested by experiment
What is a prokaryote cell
lack a nucleus and other nucleus
what is the function of the small intestines
absorb nutrients
Plants are considered what?
Autotrophs
What is symbiosis
a longterm biological relationship between two different species organisms
What is a secondary consumer
organisms that eat primary consumers
List four factors that shape climate.
Climate is shaped by global patterns of solar energy, air flow, and geographical features such as mountains and large bodies of water
Explain why the amount of solar radiation that an area at the Equator receives is different from the amount of solar radiation that an area near the North or South Pole receives
At higher latitudes, the sunlight is more spread out where it hits the ground and thus is not as intense
What is a ribosome
protein synthesis found on ER
What is digestion
breaks down food into smaller molecules that can be absorbed by the body
what is an autotroph
make their own food
What is interdependence
When one thing is depends on another inside the ecosystem for survival
What is a scavenger?
an animal that eats dead meat that it did not kill
Explain the cause of Earth’s seasons
Tilt of the earth
what is latitude
a horizontal line that measures how far north or south a location is from the equator
What is a cell wall
provides structure found in plants
Name me two parts of the urinary system
Kidneys, ureters, bladder, and uretha
write the equation for photosynthesis
6CO2+6H20+ light = C6H12O6+6O2
what is carrying capacity
the maximum population size of the species that the environment can hold
Give an example of a food chain?
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Name the two abiotic factors that play the biggest part in determining the type of terrestrial biome in a region.
the average temperature and the average amount of precipitation
What is slainity?
the amount of dissolved salts in water