Demetrius

Which of these stages will be formed when a 16-celled embryo undergoes differentiation? correct answer: Blastula The organism shown in the drawing usually reproduces through the _________ process called binary fission. A) asexual B) heterosexual C) isosexual D) sexual Bacteria reproduce through the asexual process called binary fission, or simple cell division. correct answer: A) asexual The picture depicts budding in the yeast cell. What is the result of this pro...

What are the levels of organization? correct answer: Cells -> Tissues -> Organs-> organ systems -> organism -> population -> community -> ecosystem -> biome -> biosphere Cells correct answer: Basic unit of life Tissues correct answer: Groups of cells with a common structure and function. Organs correct answer: Groups of tissues that work together to perform a specific function or related functions Organ system correct answer: a group of organs working ...

If a company claims that its product has proven scientifically, which of the following should have taken place if the results are to be considered reliable? correct answer: Results should have been peer reviewed and repeated producing the same findings a student is conducting an investigation to determine the effect of temperature on the metabolism of yeast (saccharomyces cerevisiae). yeast and sugar are added to water, the gas produced is captured, and its volume is recorded. Which variable...

Which of these is required for aerobic cellular respiration? correct answer: oxygen In a typical animal cell, which component contains the greatest amount of water? correct answer: cytoplasm Students in a biology class thought that salt water would affect the movements of planaria. They put 25 planaria in salt water and recorded their observations. Which flaw was present in the design of their experiment? correct answer: There was no control. The diagram shows a section of a cell mem...

speed correct answer: the rate of change of position (distance per time or d/t) velocity correct answer: speed with direction acceleration correct answer: the rate of change of velocity (velocity per time) mass correct answer: quantity of matter (inertia) weight correct answer: gravitational force inertia correct answer: tendency to continue at rest or with constant velocity (mass or laziness) If distance is 800 m and time is 200 s, what is speed? correct answer: 4 m/s ...

How to go from short leg to hypotenuse in a 45-45-90 triangle correct answer: x times radical 2 How to go from short leg to long leg in a 30-60-90 triangle correct answer: x times radical 3 How to go from short leg to hypotenuse in a 30-60-90 triangle correct answer: x times 2 90 degrees clockwise/ 270 degrees counter clockwise rotation: (x, y) -> ___? correct answer: (y, -x) 180 degrees rotation: (x, y) -> ___? correct answer: (-x, -y) 270 degrees clockwise/ 90 degrees...

Differentiate between CNS and PNS correct answer: CNS= "Command Center" Brain+Spinal Cord PNS= carry all outside regions of CNS to CNS What is the function of myelin? correct answer: Myelin Layer (or sheath) protects and insulates axons and enhances their electrical transmission Define MS. correct answer: Multiple Sclerosis (MS) = an immune mediated process in which an abnormal response of the body's immune system is directed against the CNS. cause unknown. No cure. Which spinal ...

What is the function of the urinary system? correct answer: To filter blood, remove waste in the form of urine What are the four organs involved in the urinary system? correct answer: Kidneys, ureters, bladder, urethra What is the function of the kidney? correct answer: To filter blood and create urea What are ureters? correct answer: Tubes that transfer the urea from the kidney to the bladder What is the bladder? correct answer: Holds the urine until it can be removed What i...

chemical reaction correct answer: reactants turn into products reactants correct answer: the molecules that are used and changed in a reaction products correct answer: Chemical substances formed as a result of a chemical reaction. They are always located on the right of the reaction activation energy correct answer: The minimum amount of energy needed to start a reaction catalyst (give an example) correct answer: A substance that speeds up the rate of a chemical reaction. (Enzym...