Science TEAS

the gray matter of the brain is largely made up of which of the following?

neuron cell bodies

the hip is an example of which of the following type of joints?

ball-and-socket

use the table below to answer the question

object A mass 5.0 g time of fall 2.0 sec

object B mass 5.0 g time of fall 1.0 sec

object C mass 30.0 g time of fall 0.5 sec

object D mass 35.0 g time of fall 1.5 sec

which of the following conclusions is supported by the data?

air resistance is greater for A than for B

experiments cannot validate hypotheses,monly falsify them

the statement above can be restated in which of the following ways?

a hypothesis that has not been falsified remains provisional

which of the following respiratory structures is affected by a disease that disrupts gas exchange such as emphysema?

alveoli

in order to determine the effects of energy drinks on women’s running speed, researchers gave 300 women an energy drink and then recorded the time it took each of them to run 2 miles. After collecting the results, researchers concluded that energy drinks increase the speed of running in women.

Which of the following further tests would best help to support this conclusion?

repeat the experiment, giving half of the women water and the other half the energy drinks

which of the following organs removes nitrogenous waste from the body?

kidneys

which of the following contains a human’s hereditary information?

chromatin

which of the following nucleotides is only found in RNA?

uracil

which of the following is correct regarding the pH scale?

a substance with a pH of 3 is 10 times more acidic than a substance with a pH of 4

the vermiform appendix extends from the region of the large intestine known as which of the following?

cecum

which of the following processes causes most of the carbon dioxide from the blood to move into the alveoli?

diffusion down a concentration gradient

the component of an atom that possess relatively little mass, thus being negligible in calculating the atomic mass number is the

electron

which of the following would result in an increase in the rate of a chemical reaction?

using a mortar and pestle to grind a solid reactant to a powder

which of the following cells transfers pigment granules to adjacent epidermal cells?

melanocytes

which of the following structures is present in both prokaryotic and eukaryotic cells?

cell membrane

which of the following hormones regulates blood calcium levels?

parathyroid hormone

if a portion of a strand of DNA bases reads 5’ AGCTAGCGT 3’ , what would the sequence of bases on the complementary strand read?

3’ TCGATCGCA 5’

whichof the following distinguishes endocrine and exocrine glands from one another?

the presence or absence of ducts

which of the following pathways best represents the expected flow of blood from the human heart to an organ?

blood pumped from the heart first enters arteries that then narrow to form arterioles that devliver blood to capillaries of the organ

which of the following tissues lines the interior surfaces of the heart?

endocardium

which of the following atoms is most likely to become cation?

potassium, atomic number 19

in pea plants, green pod color (G) is dominant to yellow pod color (g). A cross was done because a plant with green pods and a plant with yellow pods. of the resulting offspring 50% gad green pods and 50% had yellow pods. which of the following were the genotypes of both parent plants?

Gg x Gg

which of the following molecules contains the fewest covalent bonds?

chlorine molecule (CI2)

which of the following endocrine organs in the diagram below is involved in regulating milk production following childbirth?

pituitary gland

which of the following parts of the eukaryotic cell is responsible for making ATP?

mitochondria

an experienced mountaineer decides to climb Mount Everest, taking the same route in the same season and with similar materials and equipment used in a fatal 1924 expedition. which of the following is the scientific purpose of such a climb?

to assess why the earlier expedition failed

which of the following tools can be used to measure the turbidity of a liquid by measuring the transmission of light through the sample?

spectrophotometer

water molecules enter cells by which of the following transport mechanisms?

facillitated diffusion

using the equation pH= -log (H+), a solution with a (H+) = 10 -9 M has a pH of which of the following?

9

a study found two processes, process A and process B to be correlated. Which of the following is true for these processes?

the study does not indicate a casual relationship between the processes

which of the following correctly orders structures from simle to complex?

atoms, cells, tissues, organs

which of the following is classified as a noninfectious disease?

psoriasis

which structure of the female reproductive system is the source of the blood and mucosal tissue during menstruation?

B

if A represents atomic mass and Z represents atomic number, which of the following describes an atom after a proton is emitted from its nucleus?

A-1, Z-1

parasitic worm infestation is hypothesized to be damaging to the host. However, scientists have recently discovered that worm infestation can relieve the effects of certain autoimmune disorders. In which of the following ways should the hypothesis be modified, given the new findings?

worm infestation reduces the severity of certain autoimmune disorders

when a volcano erupts, its actions are similar to which of the following events?

a can of soda fizzing when it is opened

which of the following demonstrates a chemical reaction of water?

water produces gas with sodium metal

which of the following is an example of biological macromolecule?

amino aicd