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In physics, work means the use of what to move an object? |
What is the skin of most reptiles covered with? |
What is the concept by which two species within the same area to coexist by adapting by developing different specializations? |
Why do homonuclear diatomic molecules have zero dipole moment? |
What are used to balance chemical equations? |
What is a mutation that changes all or much of a particular chromosome? |
The way a mineral cleaves or fractures depends on what part of the mineral? |
Some of the biggest waves occur with what type of storm that forms over the ocean and brings high winds? |
What is a form of matter that has a definite volume, but an indefinite shape? |
What type of motion only occurs when there is one force applied at the beginning of the trajectory after which there is no interference apart from gravity? |
How do you determine the atomic weight of an element? |
Roots grow in length and width from the primary and secondary what? |
What type of bones serve as points of attachment for muscles and often protect internal organs? |
What is formed when an oxygen atom picks up a pair of hydrogen ions from a solution? |
Prokaryotic cells have what structure outside their plasma membrane? |
Who created the periodic table? |
All matter in the universe is composed of one or more unique pure substances called what? |
A catalyst can increase the rate of what, in general? |
What is the first step towards wound repair? |
Ponds and lakes are examples of what kind of biome? |
The genetic code is universal, unambiguous, and what else? |
Capillaries in the chorionic villi filter fetal wastes out of the blood and return clean, oxygenated blood to the fetus through what? |
What intensifies the response during homeostasis? |
What is the capacity to cause change? |
What is the process by which plants capture the energy of sunlight and use carbon dioxide from the air (and water) to make their own food called? |
What structures of the cardiovascular system help regulate body processes by either constricting or dilating? |
What is the name of the fungi that are ubiquitous in lakes and soil? |
What is the goal of science? |
Which material used in oxyacetylene torches helps cut and weld metals? |
In what process is atp created by glycolysis, without oxygen? |
Sometimes two or more distinct phenotypes can each have their advantages and be selected for by natural selection; this is known as what? |
In order to conduct what, electrons must move from the filled valence band to the empty conduction band where they can move throughout the solid? |
What device is an electrochemical cell or series of cells that produces an electric current? |
If heat is released by the system into the surroundings, a chemical reaction or physical change is called what? |
What is the name for the water-splitting step of photosynthesis? |
What phenomenon can cause a protein in an organism to be made incorrectly? |
What term is used to describe an illusion that light from faraway objects is reflected by a pool of water that is not really there? |
What are regular changes in biology or behavior that occur in a 24 hour cycle? |
Organic and biochemical equations show the initial and final products of the equation, respectively known as the reactants and what else? |
What is the enlarged tip of the penis called? |
What is the term for learning by watching and copying the behavior of someone else? |
On which ridge does iceland sit? |
What causes lightning during a thunderstorm? |
The capsid is made from the what that are encoded by viral genes within their genome? |
When a glacier no longer moves, what is it called? |
What bonds form because they give atoms a more stable arrangement of electrons? |
What produces sound waves that travel outward in all directions in water? |
From what did the first proto-oncogenes arise? |
Protozoa are generally difficult to identify due to what? |
Evolving from a single common ancestor, what group of organisms was perhaps the dominant life form on earth 250 million years ago? |
Like a blanket on a sleeping person, greenhouse gases act as what for the planet? |
What are the the individual protein subunits making up the capsid called? |
What are the two groups that tripoblastic eucoelomates can be divided into based on early embryonic development differences? |
While similar to insects, what eight-legged invertebrates lack antennae or wings? |
What is the term for environmental causes of mutations? |
What regulates the thyroid gland in a body? |
The ovaries produce estradiol and progesterone, which cause secondary sex characteristics and prepare the body for? |
What kind of process occurs naturally under certain conditions, unlike its opposite, which will not take place unless it is “driven” by the continual input of energy from an external source? |
Without the dominant disturbance, the fire-adapted species are usually outcompeted and biodiversity is what? |
In which way do vertebrates reproduce? |
What is the final stage of aerobic respiration, when energy from the krebs cycle is transferred to atp? |
What system carries messages from sense organs and internal organs to the central nervous system? |
The superior vena cava and the inferior vena cava are veins that return blood lacking what to the heart? |
Where do polychaete worms live? |
Atmospheric pressure is increased, causing a greater amount of oxygen than normal to diffuse into the bloodstream of the patient, in what type of therapy? |
What kind of energy is released when the thermochemical reaction of a campfire converts wood to carbon dioxide and water? |
What happens to volume as the temperature increases? |
Different clouds are associated with different types of what? |
Each new horizontal row of the periodic table corresponds to the beginning of a new period because a new principal energy level is being filled with what? |
Covalent compounds form individual molecules rather than what? |
What are the most numerous blood cells? |
Though viruses are not considered living, they share two important traits with living organisms: they have genetic material and they can undergo what process? |
What are the most common seedless vascular plants? |
What lens shape corrects myopia? |
The barrier defenses are not a response to infections, but they are continuously working to protect against a broad range of what? |
Scientists that study dolphins and other life in the ocean are called what? |
What is the term for volcanic mudflows? |
What is a purification process where the components of a liquid mixture are vaporized and then condensed and isolated? |
The duodenum, the jejunum, and the ileum are the main regions of which organ? |
What did darwin call the evolutionary concept of change in populations over generations? |
The four major classes of biological macromolecules include carbohydrates, lipids, proteins, and what else? |
What part of the body do ants use to detect chemicals? |
The challenge of techniques used for proteomic analyses is the difficulty in detecting small quantities of what? |
How are the major families of organic compounds characterized? |
Most scientists think that ordinary matter makes up how much of the total matter in the universe? |
What part of the cell controls what enters and leaves? |
What do you call the transfer of thermal energy between particles of matter that are touching? |
Who proposed that everything in the universe exerts a force of attraction on everything else? |
Inducible enzymes usually function in what type of pathways? |
Different media affect what property of light? |
What reinforces the thin walls of the right ventricle and plays a crucial role in cardiac conduction? |
What is the term for a dynamic equilibrium that is maintained in body tissues and organs? |
How many electrons can be accommodated in the first electron shell's orbital? |
What are the cells that break down inorganic molecules to supply energy for the cell, and use carbon dioxide as a carbon source? |
What helps regulate the production of urine? |
Energy from sunlight enters many ecosystems through what process? |
A minority of people on earth use up most of the planet's what, including energy? |
What are the highest clouds in the atmosphere? |
Worms grow to adult size without going through what stage? |
What does convection within the earth's mantel cause? |
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