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science help these are question with answers, plz check them which one are wrong and what are the right answer?

the 1.A blood sample taken from a patient fighting an infection would be expected to show...: elevated white blood cell count 2.a sodium atom has the following distribution of electrons in its energy cells: shell1: 2 electrons shell2: 8 electrons shell3: 1 electron Which of the following is the valence of sodium? a. 1 b. 2 c. 3 d. 11: a) 1 3.A student wants to design an experiment to demonstrate the effects of acid rain on plant life. Which of the following substances should be combined with water to best simulate acid rain?: vinegar 4.After a meal, blood flow to the gastrointestinal system increases to aid in the digestion of food. Which of the following parts of the nervous system is responsible for this response?: Parasympathetic 5.After the DNA strands are separated, which of the following is the next step of DNA replication in the S phase of the replication cycle?: formation of an RNA primer 6.In a certain plant, red flower color (R) is dominant over white (r). If a plant heterozygous for red flower color and one with white flower color are crossed, which of the following would be the expected proportion of individuals in the next generation?: 3/4 red; 1/4 white 7.In evolutionary terms, RNA is thought to have preceded proteins and DNA. Which of the following observations provides the most convincing support for the hypothesis?: single-stranded RNA is less structurally complex than double stranded DNA. 8.In the digestive tract, mouth is to bolus as..: stomach is to chyme 9.Large craters are visible on the moon but are not common on earths surface. Which of the following is the best explanation of why large craters are not evident on the Earth's surface in photos taken from space?: Natural erosion on Earth removes the evidence of large craters in a relatively short amount of time. 10.proteins play a role in a person's health because many are...: enzymes that catalyze metabolic reactions 11.The energy that drives the neuronal activity of the brain comes from food energy, which is produced by photosynthesis. Which is the sequence that describes these energy transformations?: electrical energy--> chemical energy--> light energy 12.The gains and losses of which of the following ions generally create an electrolyte imbalance?: sodium 13.The nucleus of an atom in composed of uncharged particles as well as which of the following?: protons 14.Two boys pull their identical sleds to the top of a hill. One boy loads his sled with bricks while the other boy does not put any extra object on his sled. The two boys, each weighing the same, get into their sleds and have a friend start them with equal objects in his sled. the two boys, each weighing the same, get into their sleds and have a friend start them with equal pushes down the hill. which of the following hypotheses are the boys most likely testing?: The heavier the object, the more momentum it will have. 15.When calculating population growth, which of the following equations is appropriate?: (Immigrants- Emigrants) + (Births- deaths) 16.which of the following are components of mitochondria?: cristae 17.which of the following describes mitosis?: The nucleus of a single cell creates two new nuclei with DNA identical to the parent cell 18.which of the following diseases is a result of the immune system attacking the tissues of the body?: Multiple sclerosis 19.which of the following factors is the most likely explanation for an energy deficit that results in exercise induced exhaustion?: Absence of oxygen transporters on the cell membrane 20.Which of the following human biological processes serves the same purposes as photosynthesis in plants?: anabollism 21.Which of the following is a main function of vitamins?`: supplying the brain with an energy source 22.Which of the following is a passive method by with glucose molecules enter cells?: facilitated diffusion 23.which of the following is the cellular organelle involved in secretion of proteins from the cell?: The golgi apparatus 24.Which of the following is the correct formula for the ionic compound formed by transfer of electrons between potassium and oxygen? a. KO b. K2O c. KO2 d. K2O2: b) K2O 25.Which of the following is the key factor driving cellular differentiation in the body?: rate of transcription 26.which of the following is the purpose of hypothesis testing?: obtaining empirical data to confirm or negate part or all of a theory 27.Which of the following is the result when hemoglobin fails to transport sufficient amounts of oxygen?: angina 28.which of the following monomers are the building blocks of enzymes?: amino acids 29.which of the following statements best describes the energy of a waterfall?: potential energy changes to kinetic energy energy as the water falls 30.which of the following substances require daily intake because they are not stored by the body?: water-soluble vitamins 31.which of the followi

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1. Here's a start: 1 is correct