Science Final

Front 1

If a parent cell has the genotype of CcBB, __ sex cells will be produced

Back 1

2

Front 2

_______ explains all the different breeds of dogs and cats

Back 2

selective breeding

Front 3

Darwin proposed natural selection as an explanation for ______

Back 3

evolution

Front 4

____ provide evidence for an extinct species

Back 4

fossils

Front 5

Mendel observed ______________ alleles

Back 5

dominant and recessive

Front 6

______ specializes in the study of heredity

Back 6

genetics

Front 7

the species of cprn, light and dark kernels, were developed by ______

Back 7

selective breeding

Front 8

______ results in the formation of new alleles

Back 8

mutation

Front 9

___,_____,_____ are ways humans influence the rate of species extinction

Back 9

mining, farming, and construction

Front 10

The fur color changes in a cat due tobody temperature because of _________________

Back 10

environmental influences on gene expression

Front 11

a function of proteins in your body is to _____________

Back 11

make structural body parts

Front 12

_________ are the main energy source of your body

Back 12

Carbohydrates

Front 13

The energy releasing process in cells whose waste is carbon dioxide and water is _________

Back 13

cellular respiration

Front 14

____ are groups of different tissues working together

Back 14

Organs

Front 15

_____ are the filtering, reabsorption, and secretion units of the kidney

Back 15

Nephrons

Front 16

____ help you to digest food

Back 16

enzymes

Front 17

DNA is the organic compound ________

Back 17

nucleic acid

Front 18

Oxygen and carbon dioxide are exchanged in the _____ of the lungs

Back 18

alveoli

Front 19

Homeostasis is maintained through _________ which helps the body return to normal state

Back 19

Negative feedback

Front 20

Types of cells working together make _____

Back 20

tissue

Front 21

If two atoms have the same number of protons but different numbers of neutrons, they will have the same ___________

Back 21

atomic number

Front 22

An isotope has an atomic number of 25 and a mass number of __

Back 22

50

Front 23

During beta-particles emission, a neutron splits into _________

Back 23

a proton and an electron

Front 24

For a radioactive substance, halflife is NOT determined by __________________________________

Back 24

the mass of a given sample, the temperature by which the substance is stored, and the presence of magnetic fields

Front 25

__________ have almost the same mass

Back 25

protons and neutrons

Front 26

_____ best represents Dalton;s mental image of an atom

Back 26

a marble

Front 27

____________ best represents Thomson's mental image of an atom

Back 27

A chocolate-chip cookie

Front 28

Based on his expirement, Rutherford concluded that atoms were _________

Back 28

mainly empty space

Front 29

A _____ would not be defected by a magnetic field

Back 29

neutron

Front 30

A transmutation involving the release of alpha particles produces atoms whos atomic number has _____________

Back 30

decreased by 2

Front 31

A transmutation involving the release of beta particles produces atoms whose atomic number has ____________

Back 31

increased by 1

Front 32

The fluorescent screen in Rutherford's experiment was designed to ___________

Back 32

detect changed particles

Front 33

The nucleus is held together by ___________

Back 33

the strong nuclear force

Front 34

A 10 gram sample from a healthy 200 year old redwood would contain _________ carbon-14 as a 10 gram sample from a 20 year old redwood sampling

Back 34

the same amount

Front 35

Iodine-131 would make a good tracer element because __________________

Back 35

it is absorbed mainly by cells in the thyroid

Front 36

When Mendeleev made his arrangement of the elements in a table, he found that elements with ______________ fell into groups on the table

Back 36

similar properties

Front 37

Every element has its own atomic number. The atomic number is the number _______ in the nucleus of an atom of the elements

Back 37

protons

Front 38

In the modern periodic table, elements are arranfed according to increasing ________

Back 38

atomic number

Front 39

Elements in groups 3 through 12 of the periodic table are called __________

Back 39

transition elements

Front 40

A major difference between the two rows of inner transition elements is that the lanthanides ______________________________

Back 40

have no uses while the actinides have many

Front 41

The particles that make up an atom are ____________

Back 41

protons, neutrons, and electrons

Front 42

Dot diagrams are used to represent ________________

Back 42

outer electrons

Front 43

__________ is the name given to the units that make up covalently bonded compounds

Back 43

molecules

Front 44

Aspartame is an artificial sweetener; its formula is C13H16N2O5. ______ has the largest number of atoms

Back 44

Hydrogen

Front 45

___ is not likely to have ionic bonds

Back 45

CH4

Front 46

The energy levels of an atom are occupied by _____

Back 46

electrons

Front 47

the maximum number of electrons in the second energy level of an atom is ______

Back 47

eight

Front 48

In carbon dioxide, each oxygen atom shares four electrons with the carbon atom. this is called a ______________

Back 48

double covalent bond

Front 49

_-_ is a polar bond

Back 49

O-H

Front 50

__ is the group number for elements that have a stable number of electrons in their outer energy level

Back 50

18

Front 51

In the compound, H2O, the elctrons in the bonds are unequally shared between oxygen and hydrogen, forming _________

Back 51

polar bonds

Front 52

Forces that are equal in size but opposite in direction are _________

Back 52

balanced forces

Front 53

if gravity did not affect the path of a horizontally thrown ball, the ball would ___________

Back 53

travel horizontally

Front 54

Newtons first law of motion states that an object remains at rest unless a ___ force acts on it

Back 54

net

Front 55

Air resistance ______ as you move faster

Back 55

increases

Front 56

the force you have to overcome to start an object moving is __________

Back 56

static friction

Front 57

Whenever a body is in motion, there is always _______ to oppose the motion

Back 57

friction

Front 58

the upward force on an object falling through the air is _____________

Back 58

air resistance

Front 59

The relationship among force, mass, and acceleration is stated in ______________________________

Back 59

newtons second law of motion

Front 60

a feather falls through the air more slowly than a brick because of ___________

Back 60

air resistance

Front 61

According to newtons second law of motion, _______

Back 61

a=Fnet
-------
m

Front 62

A 3000-N force gives an object an acceleration of 15 m/s^2. Th mass of the object is _____

Back 62

200kg

Front 63

a 300-N force acts on a 25-kg object. the acceleration of the object is ____

Back 63

12 m/s^2

Front 64

The statement "for every action, there is an equal but opposite reaction" is a statement of ____________

Back 64

newton's third law

Front 65

with action-reaction forces, ______________________

Back 65

the forces are created at the same time

Front 66

when a diver jumps off a diving board, gravity pulls him or her down to the water. the reaction forces to Earth's gravity is that the

Back 66

air resistance slows the diver