The first cells on earth were prokaryotic, _____ and _____. - ANSWER-heterotrophic,
anaerobic
Living organisms possess a degree of organization and complexity in their structure.
This refers to the life characteristic of _____. - ANSWER-Order
The unity of life is illustrated by the idea that all organisms - ANSWER-evolved from a
single common ancestor
Where is the majority of ATP produced in a eukaryotic cell? - ANSWER-Mitochondria
Number the following events to indicate the order in which they occurred. - ANSWER-1.
Animals first appeared on Earth
2.
The Cambrian Explosion
3.
The Permian Extinction
4.
Dinosaurs first appeared on Earth
5.
Mammals first appeared on Earth
6.
The Cretaceous Paleogene Extinction
When mitochondria became part of the eukaryotic cell, the cell became "rich" with ATP.
This lead to cell specialization. Cell specialization allowed - ANSWER-The evolution of
multicellular organisms
To which kingdom would a multicellular, eukaryotic, photosynthetic organism belong? -
ANSWER-plantae
,Which pair of organelles is responsible for energy supply to eukaryotic cells? -
ANSWER-chloroplasts and mitochondria
Which is the highest level in the taxonomic organization? - ANSWER-Domain
Which of the following is TRUE of ALL organisms? - ANSWER-They obtain nutrients
Which organelle extracts energy from food molecules and stores it in the high-energy
bonds of ATP? - ANSWER-mitochondrion
Living organisms must self-regulate their internal processes. Another term for self-
regulation is _____. - ANSWER-homeostasis
In the nemonic King Philip did come over for gross spaghetti, Philip corresponds to -
ANSWER-Phylum
Aerobic organisms use oxygen as the __________ - ANSWER-Final electron acceptor
Stromatolites contain the fossils of the first _____ cells. - ANSWER-photoautotrophic
Which organelles are thought to have originated via endosybiosis? - ANSWER-
Mitochondria and Chloroplasts
The _____ in Earth's atomosphere is responsible for the formation of the ozone layer. -
ANSWER-oxygen
Humans sweat when the temperature gets hot so that they can cool themselves.
[Blank1] - ANSWER-Homeostasis
The Permian Extinction occurred after the Cambrian Explosion. - ANSWER-True
The hereditary material that is present in all cells is - ANSWER-DNA.
Which is a difference between prokaryotes and eukaryotes? - ANSWER-Prokaryotes
have a nucleoid, eukaryotes have a nucleus.
The Bacteria and Eukarya domains are distinguished by - ANSWER-the absence or
presence of organelles including a nucleus.
first eukaryotic cells - ANSWER-Proterozoic
the first cells - ANSWER-Archean
oxygen entered the atmosphere - ANSWER-Proterozoic
no life possible - ANSWER-Hadean
Cambrian Explosion - ANSWER-Phanerozoic
Ancient members of all Eukarya kingdoms appeared. - ANSWER-Proterozoic
An extremophile would most likely be found - ANSWER-in water from a hot spring
"Scientific names" contain the ___________ and the ___________ - ANSWER-Genus
and species
The main difference between an autotroph and a heterotroph is - ANSWER-how they
obtain energy.
The smallest unit of life is the ________. [Blank1] - ANSWER-Cell
A simple food chain begins with the energy of the Sun. - ANSWER-True
A ________ is a portion of DNA that resides at a particular locus or site on a
chromosome and encodes a particular function. [Blank1] - ANSWER-Gene
Mitochondria are - ANSWER-aerobic and produce ATP.
Aerobic heterotrophs combine oxygen with ______, to produce CO2, water and energy-
carrying molecules like ATP. - ANSWER-carbohydrates
We use the scientific method every day. Imagine your car doesn't start one morning
before school. Which of these is a reasonable hypothesis regarding the problem? -
ANSWER-I'm out of gas.
, There are very few laws, but many theories in biology. Why? - ANSWER-A theory is
supported by repeated tests and by extensive evidence, but cannot be proven; laws
must be proven to be true.
Science is not: - ANSWER-art
technology
interpretation of reality
individualistic
You are testing treatments for AIDS sufferers and find that 75% respond very well and
25% show no improvement or decline in health after your experimental treatment. You
should - ANSWER-review the results, modify the drug or the dosage, and repeat the
experiment.
A good experiment should look at as many variables as possible. True or False? -
ANSWER-False
Alexander Fleming observed a patch of mold that bacteria were not able to grow near.
Which of these was his hypothesis? - ANSWER-The mold produced a substance that
killed nearby bacteria
Which of these would NOT be scientific - ANSWER-use different tomatoes in spaghetti
sauce to determine which produces the best taste
To test the effect of vitamin D on growth, two groups of rats were raised under identical
conditions and fed the same diet, but one of the groups also received daily injections of
vitamin D. The injections of vitamin D in this experiment are considered the ________.
[Blank1] - ANSWER-Variable
You are wondering whether a new type of chicken feed, Clucky-Doo, will increase egg
production by your flock of hens. You think, despite the ads you've seen on TV, that the
new chicken feed will have no effect on the egg production of your hens. You divide
your flock of 100 hens into two groups of 50, group A and group B. Group A hens are
fed the new type of chicken feed (Clucky-Doo) while group B hens are fed the same
feed you've been using for 10 years, (Eggtastic). You keep track of how many eggs are
produced by each group of hens. You find that Clucky-Doo and Eggtastic produce
identical egg production numbers in the two groups of hens. You were right! Match each
description below with the correct step of the scientific method. - ANSWER-B.
Perform an experiment
C.
Define a problem
A.
Draw a conclusion
D.
State a hypothesis
The 3 domains of organisms are Eukarya, Bacteria and _______. - ANSWER-Archaea
Archaebacteria
Archae
Archea
How did oxygen first enter the atmosphere of Earth? - ANSWER-through
photosynthesis
anaerobic
Living organisms possess a degree of organization and complexity in their structure.
This refers to the life characteristic of _____. - ANSWER-Order
The unity of life is illustrated by the idea that all organisms - ANSWER-evolved from a
single common ancestor
Where is the majority of ATP produced in a eukaryotic cell? - ANSWER-Mitochondria
Number the following events to indicate the order in which they occurred. - ANSWER-1.
Animals first appeared on Earth
2.
The Cambrian Explosion
3.
The Permian Extinction
4.
Dinosaurs first appeared on Earth
5.
Mammals first appeared on Earth
6.
The Cretaceous Paleogene Extinction
When mitochondria became part of the eukaryotic cell, the cell became "rich" with ATP.
This lead to cell specialization. Cell specialization allowed - ANSWER-The evolution of
multicellular organisms
To which kingdom would a multicellular, eukaryotic, photosynthetic organism belong? -
ANSWER-plantae
,Which pair of organelles is responsible for energy supply to eukaryotic cells? -
ANSWER-chloroplasts and mitochondria
Which is the highest level in the taxonomic organization? - ANSWER-Domain
Which of the following is TRUE of ALL organisms? - ANSWER-They obtain nutrients
Which organelle extracts energy from food molecules and stores it in the high-energy
bonds of ATP? - ANSWER-mitochondrion
Living organisms must self-regulate their internal processes. Another term for self-
regulation is _____. - ANSWER-homeostasis
In the nemonic King Philip did come over for gross spaghetti, Philip corresponds to -
ANSWER-Phylum
Aerobic organisms use oxygen as the __________ - ANSWER-Final electron acceptor
Stromatolites contain the fossils of the first _____ cells. - ANSWER-photoautotrophic
Which organelles are thought to have originated via endosybiosis? - ANSWER-
Mitochondria and Chloroplasts
The _____ in Earth's atomosphere is responsible for the formation of the ozone layer. -
ANSWER-oxygen
Humans sweat when the temperature gets hot so that they can cool themselves.
[Blank1] - ANSWER-Homeostasis
The Permian Extinction occurred after the Cambrian Explosion. - ANSWER-True
The hereditary material that is present in all cells is - ANSWER-DNA.
Which is a difference between prokaryotes and eukaryotes? - ANSWER-Prokaryotes
have a nucleoid, eukaryotes have a nucleus.
The Bacteria and Eukarya domains are distinguished by - ANSWER-the absence or
presence of organelles including a nucleus.
first eukaryotic cells - ANSWER-Proterozoic
the first cells - ANSWER-Archean
oxygen entered the atmosphere - ANSWER-Proterozoic
no life possible - ANSWER-Hadean
Cambrian Explosion - ANSWER-Phanerozoic
Ancient members of all Eukarya kingdoms appeared. - ANSWER-Proterozoic
An extremophile would most likely be found - ANSWER-in water from a hot spring
"Scientific names" contain the ___________ and the ___________ - ANSWER-Genus
and species
The main difference between an autotroph and a heterotroph is - ANSWER-how they
obtain energy.
The smallest unit of life is the ________. [Blank1] - ANSWER-Cell
A simple food chain begins with the energy of the Sun. - ANSWER-True
A ________ is a portion of DNA that resides at a particular locus or site on a
chromosome and encodes a particular function. [Blank1] - ANSWER-Gene
Mitochondria are - ANSWER-aerobic and produce ATP.
Aerobic heterotrophs combine oxygen with ______, to produce CO2, water and energy-
carrying molecules like ATP. - ANSWER-carbohydrates
We use the scientific method every day. Imagine your car doesn't start one morning
before school. Which of these is a reasonable hypothesis regarding the problem? -
ANSWER-I'm out of gas.
, There are very few laws, but many theories in biology. Why? - ANSWER-A theory is
supported by repeated tests and by extensive evidence, but cannot be proven; laws
must be proven to be true.
Science is not: - ANSWER-art
technology
interpretation of reality
individualistic
You are testing treatments for AIDS sufferers and find that 75% respond very well and
25% show no improvement or decline in health after your experimental treatment. You
should - ANSWER-review the results, modify the drug or the dosage, and repeat the
experiment.
A good experiment should look at as many variables as possible. True or False? -
ANSWER-False
Alexander Fleming observed a patch of mold that bacteria were not able to grow near.
Which of these was his hypothesis? - ANSWER-The mold produced a substance that
killed nearby bacteria
Which of these would NOT be scientific - ANSWER-use different tomatoes in spaghetti
sauce to determine which produces the best taste
To test the effect of vitamin D on growth, two groups of rats were raised under identical
conditions and fed the same diet, but one of the groups also received daily injections of
vitamin D. The injections of vitamin D in this experiment are considered the ________.
[Blank1] - ANSWER-Variable
You are wondering whether a new type of chicken feed, Clucky-Doo, will increase egg
production by your flock of hens. You think, despite the ads you've seen on TV, that the
new chicken feed will have no effect on the egg production of your hens. You divide
your flock of 100 hens into two groups of 50, group A and group B. Group A hens are
fed the new type of chicken feed (Clucky-Doo) while group B hens are fed the same
feed you've been using for 10 years, (Eggtastic). You keep track of how many eggs are
produced by each group of hens. You find that Clucky-Doo and Eggtastic produce
identical egg production numbers in the two groups of hens. You were right! Match each
description below with the correct step of the scientific method. - ANSWER-B.
Perform an experiment
C.
Define a problem
A.
Draw a conclusion
D.
State a hypothesis
The 3 domains of organisms are Eukarya, Bacteria and _______. - ANSWER-Archaea
Archaebacteria
Archae
Archea
How did oxygen first enter the atmosphere of Earth? - ANSWER-through
photosynthesis
