The relative concentration of hydrogen to hydroxide ions is represented by the _____ scale. ConcentrationHydroxylhydrogenpH In the early _____ , scientists came up with the pH scale 2000s1900s1800sNone of these the term pH symbolizes the _____ ion concentration in a…
In eukaryotic cells, DNA is contained within a chamber called a nucleus that’s separated from the cytoplasm by a membrane called the _ nuclear envelopecell envelopeplasma envelopeNone of these The nucleolus produces _ which move out to the cytoplasm to…
_ figured out the structure of a nucleic acid Born and oppenheimerDarwin and pasteurJames Watson and Francis CrickWilliam hooks and matthias schleiden James Watson and Francis Crick figured out the structure of a nucleic acid in _ 1967195319021899 Nucleic acids…
A _____ is a good example of an animal with a nerve net.starfishsharkHumancow Animals with a defined head (such as worms, insects, reptiles, mammals, and birds) possess a _____ -part nervous system 3526 _____ consists of the animal’s brain and…
Nerve impulses pass through a neuron in about _ seven millisecondsseven microsecondshundred milliseconds2 nanoseconds When a neuron is inactive, just waiting for a nerve impulse to come along, the electrical difference across the nerve cell membrane is called its _…
MCQ# 1: Darwin concluded that biological evolution occurred as a result of _ selection naturalArtificialBoth of theseNone of these MCQ# 2: _ selection is the theory that in any given generation, some individuals are more likely to survive and reproduce…
_ is a disease caused by uncontrolled cell division AIDScancersyphillisosteoarthritis a mass of cells accumulated at a place in body resulting in cancer is called? tissueTumorpileorgan Tumor that is more likely to spread and cause death is called? Benign TumorMalignant…
Functions of muscles include __ Digestion of foodHelp you Standing uprightmovementAll of these __ is the squeezing of food down through the esophagus, stomach, and intestines churningPeristalsisDigestiondefecation the parts of the muscle fiber that contract is called? cartilageMyofibrilsCollagenNone of these…
__ is a protein that breaks down one of the chemicals found in bacterial cell walls ValineamylaseLysozymecollagen _ in your blood binds iron so microbes don’t have enough iron for their growth. TransferrinValineAmylasehistidine _ in your blood and tissue fluids…
The process of mitosis occurs in _ phases 25411 Final phase of mitosis is? KaryokinesisKrebs cyclecytokinesisglycolysis In _, The chromosomes of the cell get ready to be moved around by coiling themselves up into tight little packages MetaphaseProphaseAnaphaseTelophase In _,…
