TEAS Science 2

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TEAS Science 2
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1

What indicates the number of neutron and electrons for a neutral isotope of iridium (IR) that has a mass number of 191

114 Neurons and 77 electrons

2

When examining electronegativity values, which atoms will form the least polar bond with hydrogen (H)

Hydrogen (H)

3

Which element is the best electrical conductor?

Potassium (K)

4

A large saturated hydrocarbon will contain

More than twice as many hydrogen atoms as carbon atoms

5

A student is testing the materials in two different soil samples. What assumption can be made from table data containing
Nutrient 1 2
Nitrates YES YES
Phosphates YES NO

Different soils contain different nutrients

6

.... are at higher taxonomic levels of organization that ......

Cells; molecules

7

What is considered the least useful method when conducting quantitative scientific research

Recording qualitative observation

8

What is needed for cellular waste recycling?

Lysosome

9

A researches wishes to test the hypothesis that soy is a superior diet compared to whole wheat for the reproductive purposes of certain beetle types. How would the researcher best test this hypothesis

Compare the eggs from 10 soy and 10 whole wheat cultures

10

What system includes organs between the mouth and anus

Digestive

11

How can a punnett square help predict a genotype of the offspring if the alleles of both parents are known

Shows what genotypes are possible in the offspring

12

A substance with a PH of 7.0 when dissolved in water is?

Neutral substance

13

What byproduct of cellular respiration is used by autotrophs in the production of glucose

Carbon Dioxide

14

A certain disease is carried on allele (a) which is recessive the normal condition (A). If a normal (AA) make mates with a female who has the disease (aa), what percentage of their offspring will carry the disease.

100%

15

A line on a diagram starting at 700 insect species and goes down along the line of a temperate graph represents the correlation between insect diversity and temperature is called a

Inverse

16

The pancreas is a component of what system

Endocrine

17

What bond is primarily responsible for base pairing in complementary strands of DNA

Hydrogen

18

A cell uses what as the first line of defense against mutation during DNA replication

DNA Polymerase proofreading

19

After passing through the stomach, food continues in to which structure?

Duodenum

20

Suppose a 2 KG mass is travelling at 3 meters/second. What will its kinetic energy (KE) be?

9 Joules

21

Three different liquids with 3 different densities are placed together in a container. The liquids, when stirred and allowed to resettle always return to 2 at the top, 1 in the middle and, 3 at the bottom. What does this mean?

Liquid 1 has a higher density than liquid 2

22

What term is given to multiple forms of a gene that are produced by mutation?

Allele

23

During mitosis and cell division, spindle fibers are associated with which organelles?

Centrosomes

24

What part of the gastrointestinal tract does the absorption of water primarily occur?

Colon

25

During which stage of development do individual tissue layers begin to form

Gastrulation

26

What number represents the number of different cells formed upon completion of meiosis II

4 two original 2 copied

27

What is a property of bases

Liberates OH- in solution

28

During which stage of interphase is mRNA synthesized?

G1

29

A harmful example of a catalytic reaction involves the breakdown of ozone by the use of ....

Chlorine Ions

30

Phenotypes are seen due to the production of ... from the genotypic code found in the cell nucleus

Proteins

31

Receiving a vaccination against a particular disease results in what type of immunity?

Active

32

The veins of the upper part of the body are responsible for transporting blood to which area of the heart?

Superior vena cava

33

The spleen and thoracic duct are parts of which system?

lymphatic

34

Nucleotides are to DNA as amino acids are to

Proteins

35

Which taxonomic rank is the most specific

Species

36

For a given substance, the gas phase (compared to the liquid stage) is considered to have .... intermolecular attractions and to exist as .... temperatures

weaker; higher

37

What pulls air in to the body during inspiration?

diaphragm

38

What is the chemical formula for octyne

C8 H14

39

A culture for the flour beetle Tribolium confusum was started with 10 males and 10 females in a 20 milliliter flask. Over a period of time, the beetle population increase to 940 insects, after which, the number remained constant for several days, followed by an increase in death rate. What is a reasonable hypothesis related to this experiment?

The population is controlled by density-dependent factors

40

What describes how inhibitors affect the reaction rate of enzymes?

They block the active sites of the substrate, causing greatly reduced activity

41

CH4 + O2-> CO2+ H2O what balances this formula

CH4 + 2O2-> CO2+ 2H2O

42

Water's ..... bonding results in a ........ ratio of hydrogen to oxygen

Covalent; 2:1

43

During which process does RNA relay on information to the ribosomes?

Translation

44

Where is urine stored?

Bladder

45

In a medication study, population A is given modification, and population B is given a placebo. What describes population B?

Control Group

46

A boy is throwing a baseball at a target. The baseball travels 15 mph during his first throw and 30 mph during his 2nd throw. What correctly compares the energy of the baseball in these two situations?

The kinetic energy of the second throw is four times that of the first throw

47

A researcher predicts that nursing students who have taken extensive science courses will score significantly higher on their national licensing exams, when compared to nursing students who have only taken the required science courses, This prediction follows which scientific method?

Formulating a hypothesis

48

Which organ produces bile that begins the breakdown of fats?

Liver


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