biology midterm chapters 1-4

Argon has 18 protons. how many electrons are in its third energy level? a. 2 b. 4 c. 6 d. 8 e. 10

d

a scientific name consists of which of the following? I family name II genus name III species name a. I only b. II only c. III only d. I and II e. II and III

e

all organisms are alike in their... a. requirements for energy b. participation in one or more nutrient cycles c. ultimate dependence on the sun d. interaction with other forms of life e. using energy

e

as a result of experimentation, a. more hypotheses may be developed b. more questions may be asked c. a new biological principle could emerge d. entire theories may be modified e. all of these can occur

e

energy sources are needed for which of the following processes? I reproduction II growth III development a. I and II b. I and III c. II only d. II and III e. I, II, and III

e

hypotheses are... a. often in the form of a statement b. often expressed negatively c. sometimes crude attempts to offer a possible explanation for observations d. testable predictions e. all of these

e

in order to survive and reproduce, a cell needs... a. an energy source b. raw materials c. a suitable environment d. DNA e. all of these

e

living organisms are different from inanimate objects because they... a. react to environmental stimuli b. exhibit massive complexity c. possess molecules of deoxyribonucleic acid d. exhibit very high levels of organization e. all of these

e

members of what domain are evolutionary closest to eukaryotes? a. Animalia b. Protista c. Fungi d. Bacteria e. Archea

e

the control in an experiment.... a. makes the experiment valid b. is an additional replicate for statistical purposes c. reduces the experimental errors d. minimizes experimental inaccuracy e. allows for comparisons to the experimental group

e

which is the smallest unit of an element that retains the properties of the element? a. atom b. compound c. ion d. molecule e. mixture

a

which is the smallest unit of life that can exist as a separate entity? a. a cell b. a molecule c. an organ d. a population e. an ecosystem

a

which of the following lacks a nucleus? a. bacterial cell b. fungus cell c. animal cell d. protist cell e. all of these have a nucleus

a

which represents the lowest degree of certainty? a. hypothesis b. conclusion c. fact d. principle e. theory

a

which the smallest unit of life than can exist as a separate entity? a. a cell b. a molecule c. an organ d. a population e. an ecosystem

a

the hierarchical system of nomenclature... a. allows diversity to be catalogued b. organizes knowledge about species relationships c. permits organisms to be identified d. sorts organisms into groups e. includes all of these

e

the least inclusive of the taxonomic categories listed here is... a. family b. phylum c. class d. order e. genus

e

which of the following constitute the scientific name of an organism? a. Domain and Kingdom b. Kingdom and Phylum c. Genus and Class d. Kingdom and Genus e. Genus and Species

e

which is NOT an element? a. water b. oxygen c. carbon d. chlorine e. hydrogen

a

which components of an atom have negative charge? I electrons II protons III neutrons a. I only b. II only c. III only d. I and II e. II and III

a

which group includes all of the other groups? a. domain b. order c. family d. genus e. species

a

DNA codes for the production of... a. proteins b. minerals c. inorganic molecules d. vital gasses e. water

a

a community... a. includes all population of all species in a given area b. features the living organisms interacting with the physical and chemical environment c. is the sum of all places in Earth's atmosphere, crust, and waters where organisms live d. includes members of only one species e. is at a higher level of organization than an ecosystem

a

all of the following are domains of life except? a. Animalia b. Bacteria c. Archaea d. Eukarya e. none of these are domains of life

a

in ________ bonds, both atoms exert the same pull on shared electrons. a. nonpolar coavlent b. polar covalent c. double covalent d. double e. nonpolar

a

of the following, which term means the judging of information before accepting it as fact? a. critical thinking b. law c. theory d. fact e. hypothesis

a

randomly selecting samples of experimental units from an environment can result in... a. sampling error b. bling testing c. evidence d. experimental design e. consensus

a

the atomic mass (mass number) of an atom is determined by the combined masses of its.... a. neutrons and protons b. neutrons and electrons c. protons and electrons d. protons, neutrons, and electrons e. neutrons, nucleus, and electrons

a

the flow of nutrients through living organisms is best characterized as... a. circular b. a ladder c. a lattice d. one way e. a funnel

a

the nucleus of an atom contains... a. neutrons and protons b. neutrons and electrons c. protons and electrons d. protons only e. neutrons only

a

Nitrogen, with an atomic number of 7 has ________ electrons in the first energy level and ______ electrons in the second energy level. a. 1:6 b. 2:5 c. 3:4 d. 4:3 e. 5:2

b

each cell is able to maintain a constant internal environment. this condition is called... a. metabolism b. homeostasis c. physiology d. adaptation e. evolution

b

homeostasis provides what kind of internal environment? a. positive b. relatively constant c. limiting d. changing e. chemical and physical

b

in the chemical shorthand 14C, the 14 represents the number of... a. excess neutrons b. protons plus neutrons c. electrons d. protons plus electrons e. radioactive particles

b

nonliving entities do NOT possess... a. energetic interactions b. DNA c. atoms d. heat energy e. complexity

b

the atomic number refers to the... a. mass of an atom b. number of protons in an atom c. number of protons and neutrons in an atom d. number of neutrons in an atom e. number of electrons in an atom

b

the bond in table salt (naCl) is... a. polar b. ionic c. covalent d. double e. nonpolar

b

the conversion of solar energy to chemical energy is known as... a. metabolism b. photosynthesis c. chemosynthesis d. catabolism e. anabolism

b

the level of organization where factors such as sunlight, rainfall, and temperature come into play is the... a. digestive system b. the flow of energy and recycling of nitrogen in a given area c. plants producing oxygen in the Amazon basin is consumed by giraffes on the Serengeti d. glucose e. clown fish, sharks, and coral living together at the Great Barrier reef

b

which of the following are NOT eukaryotes? a. fungi b. bacteria c. plants d. animals e. protistans

b

which of the following do not depend directly on sunlight for energy? I. terrestrial producers II. animal consumers III. decomposers a. I only b. II and III only c. II only d. III only e. I and II

b

which of the following groups are made up of almost exclusively decomposers? a. Plantae b. Fungi c. Animalia d. Monera e. Protista

b

which of the following phrases would most likely be used in a discussion of homeostasis? a. respond to environmental stimuli b. limited range of variation c. rapid energy turnover d. cycle of elements e. structural and functional units of life

b

organisms sense and respond to changes both inside and outside the body by way of... a. metabolism b. photosynthesis c. receptors d. catabolism e. anabolism

c

science is based on... a. faith b. authority c. evidence d. force e. facts

c

the DNA molecule is most similar functionally to a... a. pair of scissors b. flashlight battery c. computer memory chip d. ballpoint pen e. craft kit of ceramic tiles

c

the choice of whether a particular organism belongs to the experimental group or the control group should be based on... a. age b. size c. chance d. designation by the experimenter e. sex

c

the plural for genus is... a. genus b. geni c. genera d. gena e. genae

c

the subatomic particle(s) with a negative charge is(are)... a. the neutron b. the proton c. the electron d. both the neutron and proton e. both the proton and electron

c

which components of an atom do not have a charge? I electrons II protons III neutrons a. I only b. II only c. III only d. I and II e. II and III

c

which of the following statements is NOT true? a. all isotopes of an element have the same number of electrons b. all isotopes of an element have the same number of protons c. all isotopes of an element have the same number of neutrons d. we refer to isotopes by mass number

c

about 12 to 24 hours after the previous meal, a person's blood-sugar level normally varies from 60 to 90 milligrams per 100 milliliters of blood, though it may rise to 130 mg/100 ml after meals high in carbohydrates. that the blood-sugar level is maintained within a fairly narrow range despite uneven intake of sugar is due to the body's ability to carry out... a. adaptation b. inheritance c. metabolism d. homeostasis e. all of these processes

d

all living things... a. use and make energy b. grow and reproduce c. contain a nucleus d. both a and b e. all of the above

d

in a chemical equation, the chemicals to the left of the arrow are... a. products b. in greater abundance c. at higher energy levels d. reactants e. all of these

d

members of what group are multicellular producers? a. Animalia b. Protista c. Fungi d. Plantae e. none of these are multicellular producers

d

olestra chips did not cause cramps at a higher rate than normal chips. that was the _________________ of this experiment. a. hypotheses b. prediction c. control d. conclusion

d

the flow of energy among living organisms in the biosphere is best characterized as... a. circular b. a ladder c. a lattice d. one-way e. a funnel

d

the most inclusive level of organization listed here is a(n)... a. heart. b. carbon atom c. DNA d. a zebra e. red blood cell

d

which of the following is NOT a key characteristic of "life"? a. organization into cells b. response to environmental change c. reproduction d. inability to change e. using energy

d

which represents the highest degree of certainty? a. hypothesis b. deduction c. assumption d. theory e. prediction

d

Carbon Dioxide is an example of a(n)... a. atom b. ion c. compound d. mixture e. element

v