Is there any invertebrates that have no known natural predator? (Electron eel is not acceptable)
There are many organism who have no natural predator. But they are preyed upon for self satisfaction by humans. These animals are
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Is there any invertebrates that have no known natural predator? (Electron eel is not acceptable)
7. (10 points) A representative element is known to have one valence electron. The principle quantum number for the valence level is n 4 a) Write the atomic symbol of this element and its electron configuration in noble gas shorthand notation. b) Would this element behave as an oxidizing agent or a reducing agent in a chemical reaction? What is the most likely charge of the ion formed from an atom of this element?
An n-type germanium specimen is known to have an electron concentration of 5 x 1022 m-?. (a) Such type of semiconductor can be produced by the addition of what element to intrinsic germanium? Give an example and explain why it can be used for this purpose. (b) Calculate the electrical conductivity of this material, assuming electron and hole mobilities of 0.1 and 0.05 m²/V s, respectively. (c) Sketch the approximate position of Fermi level in a band diagram for this...
An electron is known to be confined to a region of width 0.1 nm. What is the lowest kinetic energy it could have, in eV? 1. 0.68 eV 2. 0.80 eV 3. 0.95 eV 4. 1.1 eV
"Provided our consumption does not exceed its natural level of production, the burning of biomass should generate no more heat and create no more carbon dioxide than would have been formed in any case by natural processes." What do you think about this in terms of long-term wood burning to heat homes in rural areas? Specifically under what circumstances would you consider this acceptable or unacceptable?
Under usual conditions a particular drug is known to have a pH that is normally distributed with mean 9 and variance 0.25. If pH of drug is either lower or upper 15% distribution, it is not acceptable.In a random sample of 36 different drugs, approximate the probability that more than 30 of them have acceptable pH level.
18. Every electron in the universe is the same as any other electron. It is a symmetry of physics, that if you interchange any pair of electrons, the Schrödinger equation is invariant. Consider one pair of electrons which we call electron-1 and electron-2. Define the interchange operator P12 to simple interchange the two electrons. H4142 = EU142 HP120142 = EP120102 a) Use the above equations to show that the P12 operator commutes with the Hamiltonian. b) Use that fact that...
Let z, y > 0. Prove that for any ε > 0 and p, q > 1 so that = 1 we have q + is 1s known as Young's inequality with E. Let z, y > 0. Prove that for any ε > 0 and p, q > 1 so that = 1 we have q + is 1s known as Young's inequality with E.
Assignment Predator / Prey Objectives Reading from and writing to text files Implementing mathematical formulas in C++ Implementing classes Using vectors Using command line arguments Modifying previously written code Tasks For this project, you will implement a simulation for predicting the future populations for a group of animals that we’ll call prey and their predators. Given the rate at which prey births exceed natural deaths, the rate of predation, the rate at which predator deaths exceeds births without a food...
An outlier's effect. Our bodies have a natural elec- trical field that is known to help wounds heal. Does changing the field strength slow healing? A series of experiments with newts investigated this question. In one experiment, the two hind limbs of 12 newts were assigned at random to either experimental or control groups. This is a matched pairs design. The electrical field in the experimental limbs was reduced to zero by applying a voltage. The control limbs were left...
Type your answer in the box. Niels Bohr postulated that the electron in a hydrogen atom can occupy any of a series of fixed circular paths, known as _______ . Each of these is characterized by a fixed _______ level.For the reaction of lithium with oxygen, select the product combination that has the correct number of ions with the correct Lewis symbols. "