Question 13 Which of the following is a neutral subatomic particle? O 1. neutron O 2. proton 3. electron 4. electron and neutron O 5. neutron and proton

Q: In Chapter 1 of Astrobiology, A Very Short Introduction, the author talks about some special…

A: 1) It acts as a stable medium for biochemical processes. Water’s ability to dissolve most…

Q: Question 49 The first law of thermodynamics states O energy is changed when its form is changed O…

A: Thermodynamics was considered a branch of physical science that deals with various energy forms in a…

Q: QUESTION 3 True or false: The oxidizing agent in a reaction is the one that gets oxidized. O True O…

A: A biochemical reaction is the change of one atom to an alternate particle inside a cell. Biochemical…

Q: The components of a cartridge include the bullet/projectile, powder. and primer; anvil primer;…

A: Cartridge is a case or container that holds other substances. Functional bio inks are more…

Q: un an electron-dot symbol of an element, the dots are O only the electrons that will participate in…

A: all atoms have electrons , electrons take part in bond formation . the lewis dot struture is a…

Q: The mass number for an isotope is 14. This isotope could be: a carbon atom with 8 neutrons an oxygen…

A: Mass number of an atom is the sum of the number of protons and neutrons in the nucleus of the atom.…

Q: Since amino acids are weak acids they are often used as buffers. In this titration curve of glycine…

A: Buffer exhibits the highest resistance to acid and base addition for the equimolar solution (when…

Q: Question 44 1 pts Reactants capable of interacting to form products in a chemical reaction must…

A: Activation energy is defined as the minimum amount of extra energy required by a reacting molecule…

Q: Question 8 In water, leftover positive forces on hydrogen attracted to leftover negative forces on…

A: In water, the structure and the charge of the atoms present on it give the ability for the molecules…

Q: With the exception of He, elements with two valence electrons will be considered: O Metals…

A: A valence electron is an electron that is associated with an atom, and that can participate in the…

Q: Which of the following is most directly responsible for water's unique properties? A It contains…

A: Question- Which of the following is most directly responsible for water's unique properties? A)- It…

Q: On Earth the equator regions are warmer than the north and south poles because the polar atmosphere…

A: An equator is a imaginary line around the middle of earth or any spherical object like planet, star,…

Q: Question 17 4 pts A reaction that begins spontaneously progressively becomes less spontaneous as the…

A: Answer - P/R increases  so RTln (P/R) is larger.

Q: Question 92 Human red blood cells containing 0.9% sodium chloride are placed in a beaker containing…

A: Osmosis is the process by which solvent molecules, typically water, move across a semipermeable…

Q: Given the Lewis structure below: HO H H C C C C CIH There are sigma bonds and pi bonds.

A: Sigma and pi bonds are types of covalent bonds that differ in the overlapping of atomic…

Q: Which of the following statements about peptide bonds is FALSE? The peptide bond is planar. The…

A: A peptide bond refers to the chemical bond that connects two amino acids. It is formed between the…

Q: QUESTION 4 Lipids are hydrophobic molecules and have no charge. If they are loaded into a gel, and…

A: Gel electrophoresis is a technique in molecular biology where different samples are separated based…

Q: One of the buffers that contribute to pH stability in human blood is carbonic acid (H₂CO3). Carbonic…

A: Introduction   The normal pH of blood is 7.4 which is near to neutral and slightly basic.  the…

Q: Question 1 Endothermic animals such as snakes are often seen "sunning" themselves on a rock to…

A: Endothermic animals such as Snake are often seen sunning themselves on a rock to absorb the heat of…

Q: In the accompanying figure, the atomic number refers to the:

A: The given is C (carbon) The atomic number is 6 The mass number is 12

Q: QUESTION 45 When can we say that atom has no vacancy, or the atom is full? O a. An atom's outer…

A: Atom is the smallest particles of matter. It can't be destructed further.

Q: The red dotted lines represent O peptide bonds hydrogen bonds O covalent bonds O hydrogen bonds…

A: A motif in protein structure refers to a chain-like biological structure made up of connectivity…

Q: Which molecule is a saturated fatty acid?

A: Carboxylic acid with hydrocarbon side chain are fatty acids. They are mostly esterified but can also…

Q: QUESTION 6 On a daily basis, Thomas throws things in the toilet, puts his toys in the trash, and…

A: The objective of the question is to identify the type of reactions, according to Piaget's theory of…

Q: The conversion of glucose 6-phosphate to fructose 6-phosphate: O consumes one ATP molecule O…

A: The primary sugar in your blood is called glucose. Your body uses it as its primary source of…

Q: Question 31 of 35 What is K for a reaction if AG° =-51.2 kJ/mol at 25.00 °C? (R = 8.314 J/mol · K) +…

A: The objective of the question is to calculate the equilibrium constant (K) for a reaction given the…

Q: Two macromolecules, such as proteins, can adhere tightly and specifically to each other. How can…

A: Proteins when binds to a molecule it does so with great specificity and is tightly bound. There are…

Q: What is the approximate atomic mass of an atom with 16 neutrons, 15 protons and 15 electrons?

A: Atomic mass is described as the number of protons and neutrons in an atom.

Q: Based on the figure above, what is the relationship between the ionization energy of Element 2 and…

A: Introduction Band Gap or Band energy refers to the energy difference between the top of the valence…

Q: Many sea mammals , fish, and birds have the same body form, i.e. whales, marlin, and penguins. Which…

A: Answer- (b) Their shapes are a result of convergent evolution,which reduces drag while swimming.

Q: The breakdown of large molecules by the enzymatic addition of water is an example of what kind of…

A: Macromolecules make up living organisms. Proteins, Carbohydrates, Lipids and Nucleic Acids are the…

Q: A crystal of sodium chloride ( in the absence of water) would contain bonds. O lonic O all of the…

A: An enzyme is a biocatalyst that increases the rate of chemical reaction without itself being changed…

Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.