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DNA exists in cell as a double helix containing two intertwined chains of nucleotides. Dna consists of two long chains of nucleotides.
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What is the minimum number of times a partial lunar eclipse will occur each year?
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What type of device uses electromagnetic induction to change the voltage of electric current?
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Resistors joined end to end, so that the current only has one path along which it may travel, are said to be connected in series. For the circuit segment shown below the potential difference between points A and B is V. Resistors connected end to end are said to be in series.
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How do the spines of a cactus help it survive?
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In science, something that always applies under the same conditions is called a scientific law.
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Gastrin is the hormone responsible for gastric secretion. Gastrin signals the secretion of gastric acid.
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What are all scientific explanations and interpretations based on?
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Intrinsic muscles allow your fingers to also make precise movements for actions.
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Which of the following structures is not present in animal cells?
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What type of learning is done from past experiences and reasoning?
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Prokaryotic cells have a cell wall outside their plasma membrane.
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The protons are electrically charged, and the neutrons are electrically neutral. Neutrons are electrically neutral.
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Brass is a common alloy made by combining Copper and Zinc. Brass alloy is made from copper and zinc.
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In space, Hydrogen is the most abundant element. Hydrogen is the most abundant element in the universe.
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Flowers pollinated by wind generally lack brightly colored parts.
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The primary oocyte, in turn, starts to go through the first cell division of meiosis (meiosis I). The cell starting meiosis is called a primary oocyte.
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Insight learning, which is based on past experience and reasoning, is a hallmark of the human animal. Insight learning is based on past experience and reasoning.
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Orbitals are regions around the nucleus where a high probability exists of finding electrons. The orbital is the region called where an electron is most likely to be found.
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We call the solid form of hydrocarbons coal.
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The thickness of magma determines whether a volcanic eruption will be explosive or not.
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After infecting a host, some viruses enter the inactive state of latency.
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Fructose- A natural sugar occurring in fruit and honey. Fructose is a sugar that is found in fruits.
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What kind of fats have been implicated in the presence of heart disease?
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To confirm the work of another scientist, a scientist might replicate their work.
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How many digits do primates have on each extremity?
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phytoplankton are dependent upon inorganic nutrients brought to the surface by upwelling and the sun for energy to make their own food through photosynthesis. Phytoplankton make food via photosynthesis.
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Organisms that "love" acids are known as what?
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Filtration is the movement of fluid out of the capillaries.
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A disaccharide is formed from two monosaccharides. You call the carbohydrate formed when two monosaccharides bond together disaccharide.
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A(n) exoplanet is often discovered because it causes a star to move or to dim.
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Microscopes were first developed in the early 1600s by eyeglass makers.
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What happens when development of nervous system is disturbed?
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Hydrogen chloride is a covalent compound.
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The conifers are the most successful gymnosperms, especially on dry sites (needles are drought resistant). Conifers are the most prevalent type of gymnosperms.
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Insight learning is the term for learning from past experiences and reasoning.
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What are the major sites of gibberellin production?
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In pure water enough of the water dissociates to produce hydrogen ions in an amount which measures 7 on the pH scale. 7 is the ph of pure water.
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The ground tissue system has neither dermal nor vascular tissues.
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Nearly how many millions of people die yearly due to air pollution?
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What is another term for body chromosomes?
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Vertebrates reproduce sexually.
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When did new plants start sprouting after the forest fire?
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Decreasing the volume of a gas and keeping everything else the same will cause its pressure to increase.
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If we multiply the amount of power used by the length of time it is used we obtain the amount of energy the house has consumed. Electrical energy consumed can be expressed as the product of power multiplied by time.
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half life a unit of relative time measuring the rate at which a radioactive substance decays, or (more generally) the rate of decrease for any process that decreases exponentially. The decay rate is measured in a unit called the half-life.
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The reader must first know that enzymes are proteins that serve as biological catalyst in chemical reactions. In a biological reaction, proteins act as catalysts.
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The main greenhouse gas, CO2, comes from the burning of fossil fuels. Co2 gas is released into the atmosphere when fossil fuels are burned.
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Where does the small intestine begin?
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How many cycles do cells have?
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Earthquakes mark the motions of colliding plates and the locations where plates plunge into what?
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Bees are naturalized on every continent except antarctica.
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Sutural bones are found in the skull.
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Its energy is in the form of kinetic energy, the energy of motion. Kinetic engergy is the energy of anything in motion.
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Which statement correctly describes a relationship between two human body systems?
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Energy that is stored in a person or object is called?
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Because the solute is moving down the concentration gradient, and no input of energy is required, facilitated diffusion is considered what type of transport?
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Remote-control vehicles are able to go to the deepest ocean floor.
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The force applied to an object is called stress.
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Pressure is defined as the force per unit area. Pressure is defined in physics as the amount of force pushing against a given area.
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This is somewhat analogous to the difference between inductive reasoning (going from specific instances to a general conclusion) and deductive reasoning (going from a general principle to specific examples.) Making a specific statement based on a general principle is the definition of deductive reasoning.
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What are the only plants with a life cycle in which the gametophyte generation is dominant?
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A population of a species occupying a particular geographic area, or less commonly, a distinct habitat, capable of interbreeding with other populations of the same species. Population is the term for individuals of a species that live in a particular habitat.
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Something that has all of the characteristics of life is considered to be alive.
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Name the type of system that a jellyfish does not have?
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What is the upward force exerted by fluids when any object, such as a boat, is placed in it?
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The first is the core which is the innermost part of the Sun. The innermost layer of the sun is known as the core.
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Iron Essential nutrient since it participates in the formation of hemoglobin and a number of other enzymes. Iron ions are critical for the formation of hemoglobin.
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A wall of rocks or concrete a called a groin.
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The most common two-lens telescope, like the simple microscope, uses lenses of what shape?
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Animals need plants for food and?
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In what form of matter is hydrogen at room temperature?
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Unit Equivalent measurements, comments Celsius scale This scale sets the normal freezing point of water to 0 degrees Celsius and the normal boiling point of water to 100 degrees Celsius. In celsius, the boiling point of water is one hundred degrees.
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What might a scientist do to confirm the work of another?
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A diploid cell is a cell with two chromosomes.
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Group 13 of the periodic table is also called the the boron group.
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MOMENTUM The momentum of an object is calculated by multiplying its velocity by its mass . Momentum can be calculated by multiplying an object’s mass in kilograms (kg) by its velocity in meters per second (m/s).
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Double sugars are called disaccharides.
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Chemical elements and water are recycled through what cycle?
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Which of these would most likely improve the air quality in large Texas cities?
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A tsunami is a wave generated by a submarine (underwater) earthquake or volcanic event. A(n) underwater earthquake creates a tsunami.
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There are six leptons, three of which have electrical charge and three of which don't. There are six types of leptons.
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A light bulb converts electrical energy to light and thermal energy.
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Aqueous solution is used to describe a solution in which water is the solvent.
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The low atomic number of beryllium allows it to absorb x-rays.
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Biodiversity is an important natural resource in and of itself
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Phylogeny is the science that describes the ancestral and descendant connections between organisms.
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A jellyfish does not have a circulatory system.
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Light with the longest wavelengths is called infrared light.
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Some cells, called diploid, have 46 chromosomes. There are 46 chromosomes chromosomes in a diploid human cell.
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In vascular plants the sporophyte dominates and manufactures food for itself and the gametophyte. Vascular plants have a dominant sporophyte generation.
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During the early paleozoic, the amount of carbon dioxide in the atmosphere compared to today was?
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The vertebrae are separated by tough, intervertebral disks of fibrocartilage and held together by ligaments. Intervertebral discs are made of fibrocartilage.
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Introduction Plant viruses move from cell to cell in plant tissues through plasmodesmata, which connect the cytoplasm of neighbouring cells (Carrington et al. Plasmodesmata connect to cytoplasms in the plant cell.
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The sun is the largest body in the solar system.
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What is responsible for the properties of metals?
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The chemical behavior of elements can largely be explained by electron configurations.
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Carbon atoms have six neutrons as well as six protons.
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Circle graphs are useful for showing percents of a whole.
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Sudden and dramatic losses of biodiversity are called mass extinction.
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