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What type of learning is done from past experiences and reasoning?
Sunlight is the ultimate source of energy for all organisms. Most of food's chemical energy ultimately comes from sunlight.
The three layers of protective coverings of the spinal cord is called the meninges.
Unless there is a continuous, unbroken loop of conductive material for electrons to flow through, a sustained flow simply cannot be maintained. Because charges must have an unbroken path to follow, electric current cannot flow through a material unless it forms a closed loop.
Which statement correctly describes a relationship between two human body systems?
How do coal and the sun compare as sources of energy?
What is formed from an alcohol that loses water?
Lymph vessels are like blood vessels, except they move lymph instead of blood.
Sediments in oligotrophic lakes contain large amounts of what?
Cellulose is one of the most common biochemical compounds on earth and is found in all plants.
What is the opening in the front of the eye?
Electromagnetic Wave A disturbance which propagates outward from an electric charge that oscillates or is accelerated. Electromagnetic waves are created by oscillating charges.
Air is made of atoms.
Which primate group generally lives alone?
The orbital is the region called where an electron is most likely to be found.
What is the science that describes the ancestral and descendant connections between organisms?
Both hurricanes and tornadoes always
For social animals, communication essential.
These plants, which include a variety of orchids and ferns, make up much of the understory , the layer of the rainforest right below the canopy. The understory of the rainforest commonly has ferns and other ground plants.
Autoimmunity can develop with time, and its causes may be rooted in this?
An organism that carries pathogens from one individual to another is called what?
Why do comet tails always point away from the sun instead of trailing behind the comet?
What is another name for a broad explanation that is supported by a great deal of evidence?
The core is the sun's innermost layer.
On the other hand, if groundwater becomes heated by a magma reservoir in the crust, it will become superheated and 'erupt' at the surface as a geyser . When water is heated by magma and makes its way to the surface and creates a(n) geyser.
In passive 	 transport, the cells do not use any energy to move the molecules. You call the movement of molecules across a membrane without the input of energy passive transport.
What field of study is called the language of science?
The spines of a cactus help it survive because spines protect the cactus from animals.
All cells, including both plant and animal cells, need energy for processes such as active transport. All cells need energy for processes like active transport.
Natural selection has to do with traits that organisms clearly need to survive and to reproduce as males or females. Natural selection is the process that allows organisms with better traits to survive and produce.
What is the transfer of thermal energy between particles of matter that are touching called?
What is the force that causes centripetal acceleration?
Lipids are available to the body from three sources.
The majority of species live in the ocean.
What play several important roles in the human body?
A population is usually defined as all of the individuals of the same species that live in a given area. You call a group of organisms of the same species that live in the same area a(n) population.
A relationship between two human body systems could be the digestive system absorbs nutrients which are transported by the circulatory system.
What is the most widely used form of renewable energy in the world?
The research, by scientists at the University of Adelaide and the Australian Nuclear Science and Technology Organisation (ANSTO), at Lucas Heights, Sydney, centres on carbon-14, the naturally-occurring radioactive isotope best known for its use in the dating of ancient organic material. Carbon 14 isotope of carbon is typically used to date ancient items.
Percent Composition A direct result of the law of constant composition is that each element within a compound can be expressed as a mass percent. The term percent composition means the percentage by mass of each element in a compound.
Ectotherms undergo a variety of changes at the cellular level to acclimatize to shifts in what?
How do most fish reproduce with one another?
The polymerase chain reaction is a way of making copies of what?
Streams often start in mountains.
The half-life is defined as the time required for half of the atoms of a particular isotope to decay. The term half-life decribes the amount of time required for half of the original material to decay in an isotope.
Which best determines the number of wolves that can live in an area?
Who lack some of the defining traits of chordates?
Cranium (skull) is the term for the skeletal structure of the head that supports the face and protects the brain.
The half-life of a radioactive substance is the amount of time required for half of a give sample to decay. The term half-life decribes the amount of time required for half of the original material to decay in an isotope.
Minerals must have a natural origin in order to be minerals. A synthetic diamond is not considered a mineral because minerals must be created naturally.
The pleura that surrounds the lungs consists of how many layers?
Nonrenewable resources cannot be replaced as easily as it is consumed.
What is a compound in which all of the atoms are connected to one another by covalent bonds?
Corals build hard exoskeletons that grow to become what?
Carbon dioxide, an important greenhouse gas, dissolves in rainwater to form carbonic acid which weathers silicate rock to form carbonates óa particularly common form being limestone. Carbon dioxide chemically weather rocks by creating acids.
Why is a healthy diet important?
If a solution contains so much solute that its solubility limit is reached, the solution is said to be saturated.
Corals build hard exoskeletons that grow to become what?
What happens if a catalyst runs out?
The nitrogen cycle includes air, soil, and living things.
Melanocytes are the cells that reside in the bottom portion of the epidermis, the outer most layer of skin cells. Melanocytes are located in the bottom layer of the epidermis.
Water plus other substances makes what?
Which physical features are part of an animal that would most likely be classified as a reptile?
Heredity The genetic transmission or passing of a particular quality or trait from parent to offspring. Heredity is the science of how traits are passed from parents to offspring.
Most of earth's water is located in oceans
Which physical features are part of an animal that would most likely be classified as a reptile?
97% of the earth's water is the oceans and seas. Most of earth's water is located in oceans
What does the thymus gland produce?
What allows theories to be widely accepted?
What ancestors did caecillians evolve from?
What's the best way humans can conserve water?
Most modern seed plants are angiosperms that produce seeds in the ovaries of flowers. Angiosperms is the term for flowering seed plants.
For instance, when moving down the table, all known alkali metals show increasing atomic radius, decreasing electronegativity, increasing reactivity, and decreasing melting and boiling points as well as heats of fusion and vaporisation. When we move down a group of elements on the periodic table, their electronegativity it decreases.
Carbon atoms have six protons and electrons each.
What are sudden and dramatic losses of biodiversity called?
Cellulose is created by the polymerization of glucose.
NATURAL ENERGY RESOURCES Energy is all around us and manifests itself in many different forms -- heat, light, sound, magnetism, gravity, movement, and all life functions. Heat, light, and sound are all different forms of energy.
The mitral valve, so named because of its resemblance to a bishop's mitre, is the heart valve that prevents the backflow of blood from the left ventricle into the left atrium of the heart. Heart valves prevent the backflow of blood from happening in the heart.
Which process helps provide cleaner water for agriculture?
A(n) orangutan generally lives alone.
The mammalian middle ear has three bones.
The heterotroph eats only or mainly plants.
What is a wall of rocks or concrete called?
On which ridge does iceland sit?
Muscle groups are controlled by what mechanism?
What is the term for the skeletal structure of the head that supports the face and protects the brain?
The majority of species live in the ocean.
Antibodies Proteins in the immune system that recognize antigens and help kill invading microorganisms. Antibodies recognize and combine with harmful materials, including both toxic chemicals and invasive microorganisms.
The product of a wave's wavelength and its frequency is what?
Like all tetrapods except birds and mammals, frogs possess a heart with what structure?
A lipid is one of a highly diverse group of compounds made up mostly of hydrocarbons.
The best explanation for how air masses move across the united states is that the prevailing westerlies move air masses from west to east across the united states but may be deflected by the jet stream.
The steam produced can then be used to heat the pulp mill and any excess used in district heating schemes or to drive a steam turbine to generate electrical power. This heat is used to convert water into steam, which is then used to turn a turbine, thus generating electrical power.
How is oxygen transferred into the bloodstream?
What is the most common type of organic compound?
In the human body, what do you call the intersection where the paths for air and food cross.?
Iconic compounds have a net neutral charge.
What type of function does the long bone perform?
The nucleus stores chromatin in the nucleoplasm.
Bacteria are the most numerous species on the planet.