What is the purpose of the taxonomic system? The purpose of a taxonomic system is to allow for a scientific classification throughout the world. Explanation: Taxonomy is the process that describes the diversity of living things. This process is done using devices such as classification and nomenclature. What is the taxonomic classification system? Taxonomy (which […]

What is true of a substrate? Answer Expert Verified The substrate is the the chemical species in an organic reaction that reacts to form other product, so the substrate is a reactant. The enzymes can act over specific substrates to accelerate the reaction. While the enzymes are not consumed (they are catalysts) the substrates are […]

What do opposable thumbs allow primates to do? The grasping hands of primates are an adaptation to life in the trees. The common ancestors of all primates evolved an opposable thumb that helped them grasp branches. The hands of many higher primates can grasp and manipulate even very small objects. When did humans evolve opposable […]

During what stage of mitosis does chromatin condense into chromosomes? prophase What part of mitosis does chromatin condense into chromosomes? Prophase What stage of mitosis do spindle fibers form? Which stage of the cell cycle shows the formation of spindle fibers and chromatin condensing into chromosomes? During prophase, the nucleus disappears, spindle fibers form, and […]

How does epinephrine and norepinephrine affect blood pressure? Both epinephrine and norepinephrine can affect your heart, blood sugar levels, and blood vessels. However, norepinephrine can also make your blood vessels become narrower, increasing blood pressure. How do epinephrine and norepinephrine regulate blood glucose levels? Norepinephrine (NE) and epinephrine (Epi) help maintain normal blood glucose levels […]

How does the brain transform the two dimensional images we receive from our eyes into the three dimensional images we perceive? It works like this. Because your eyes are separated on your face, each retina produces a slightly different image. That difference in images is a direct result of the depth of the objects that […]

What happens to the frequency wavelength and amplitude of a sound that decreases in pitch? As the frequency (pitch) increases, the wavelength becomes shorter according to the universal wave equation ( v=fλ ). The amplitude, or intensity, of the wave is perceived by our ears as the loudness (think “amplifier”). What does a sound wave’s […]

Can a quadrilateral ABCD be a parallelogram? Since opposite angles are equal in parallelogram and here opposite angles are not equal in quadrilateral ABCD. Therefore it is not a parallelogram. Which information is needed to show that quadrilateral ABCD is a parallelogram? If the diagonals of a quadrilateral bisect each other, then the quadrilateral is […]

How are surface currents generated? Surface currents in the ocean are driven by global wind systems that are fueled by energy from the sun. Currents may also be caused by density differences in water masses due to temperature (thermo) and salinity (haline) variations via a process known as thermohaline circulation. Does salinity affect surface currents? […]

What is used to synthesize the lagging strand? Unlike leading strands, lagging strands are synthesized as discrete short DNA fragments, termed ‘Okazaki fragments’ which are later joined to form continuous duplex DNA. Synthesis of an Okazaki fragment begins with a primer RNA-DNA made by polymerase (Pol) α-primase. What characteristic of DNA allows two connected DNA […]