AND WELL DETAILED VERIFIED ANSWERS|GRADED A+|NEWEST
Male peacocks compete with one another to mate female peacocks. Males with more color-
ful tail feathers attract female mates at a higher rate than those w/o. Therefore male pea-
cocks have colorful tail feathers, whereas female peacocks do not. What is this an example
of? - answer sexual selection
A subatomic particle has a negative charge and is found in a shell of the atom. What is the
particle? - answer an electron
A gardener maintains a species of rose that producd either yello flowers ( the dominant phe-
notype) or white flowers ( the recessive phenotype). One day, the gardener observes that a
cross between two yellow rose bushes has led to a single rose bush with orange flowers.
What evolutionary mechanism is involved in the change in the gene pool of this species? -
answer mutation
Some cells need to maintain a set of cencentrations of na+ and k+ ions. These cells are able
to do this with the help of the na/k pump, which transports these ions from areas of low
concentration to areas of high concetration ( against their concentration gradient). Na+ is
pumped out and k+ is pumped in. Which type of membrane transport is involved in this ac-
tion? - answer active transport
Chromosomes are structures that contain hereditary mateiral that will be passed from one
generation to the next. According to this information, which organic molecule must be pre-
sent in chromosomes? - answer dna
A cell has divided its chromosomes into wo new nuclei. The cytoskeleton of the cell is cur-
rently pinching the cell in the middel to from two new cells. In which stage of the cell cycle is
this cell? - answer cytokenesis
1
, Two species of woodpecker inhabit the same loblolly pine woodland throughout the south-
eastern u.s. each species requires recently deceased (but still standing) pine trees for repro-
duction . The woodpeckers excavate their nest cavities in the dead pine trees. In most
healthy forests there are generally not enough dead pine tress to provide nests for all the
woodpeckers that want to build them. What is the relationship between these two species
of woodpecker an example of? - answer competition
There are four species of woodpeckers that inhabit the pine forests in the southeastern area
of the u.s. individuals of this species utilize many of the same resources for food and nesting.
Which level of ecological organization describes the relationship among these four species of
woodepecker? - answer community
While abroad, a traveler drinks unclean water containing tapeworm cysts. The tapeworm at-
taches to the intestical walls of the traveler, absorbing nutrients from the partially digested
food. Over the next few months, the traveler experiences ongoing nausea, loss of appetite,
and weight loss due to the presence of the tapeworm in his intestines. What is the interac-
tion between the tapeworm and the traveler and exmple of? - answer parasitism
What is the charge of a proton? - answer +1
A molecular bondd results from an electron being transferred from one atom to another.
Which type of bond holds these atoms together? - answer ionic
Which situation describes covalent bonding? - answer an atom shares an electron with
another atom.
Which item is an atom? - answer nitrogen
Which item would be classified as biotic? - answer fungus
2
Male peacocks compete with one another to mate female peacocks. Males with more color-
ful tail feathers attract female mates at a higher rate than those w/o. Therefore male pea-
cocks have colorful tail feathers, whereas female peacocks do not. What is this an example
of? - answer sexual selection
A subatomic particle has a negative charge and is found in a shell of the atom. What is the
particle? - answer an electron
A gardener maintains a species of rose that producd either yello flowers ( the dominant phe-
notype) or white flowers ( the recessive phenotype). One day, the gardener observes that a
cross between two yellow rose bushes has led to a single rose bush with orange flowers.
What evolutionary mechanism is involved in the change in the gene pool of this species? -
answer mutation
Some cells need to maintain a set of cencentrations of na+ and k+ ions. These cells are able
to do this with the help of the na/k pump, which transports these ions from areas of low
concentration to areas of high concetration ( against their concentration gradient). Na+ is
pumped out and k+ is pumped in. Which type of membrane transport is involved in this ac-
tion? - answer active transport
Chromosomes are structures that contain hereditary mateiral that will be passed from one
generation to the next. According to this information, which organic molecule must be pre-
sent in chromosomes? - answer dna
A cell has divided its chromosomes into wo new nuclei. The cytoskeleton of the cell is cur-
rently pinching the cell in the middel to from two new cells. In which stage of the cell cycle is
this cell? - answer cytokenesis
1
, Two species of woodpecker inhabit the same loblolly pine woodland throughout the south-
eastern u.s. each species requires recently deceased (but still standing) pine trees for repro-
duction . The woodpeckers excavate their nest cavities in the dead pine trees. In most
healthy forests there are generally not enough dead pine tress to provide nests for all the
woodpeckers that want to build them. What is the relationship between these two species
of woodpecker an example of? - answer competition
There are four species of woodpeckers that inhabit the pine forests in the southeastern area
of the u.s. individuals of this species utilize many of the same resources for food and nesting.
Which level of ecological organization describes the relationship among these four species of
woodepecker? - answer community
While abroad, a traveler drinks unclean water containing tapeworm cysts. The tapeworm at-
taches to the intestical walls of the traveler, absorbing nutrients from the partially digested
food. Over the next few months, the traveler experiences ongoing nausea, loss of appetite,
and weight loss due to the presence of the tapeworm in his intestines. What is the interac-
tion between the tapeworm and the traveler and exmple of? - answer parasitism
What is the charge of a proton? - answer +1
A molecular bondd results from an electron being transferred from one atom to another.
Which type of bond holds these atoms together? - answer ionic
Which situation describes covalent bonding? - answer an atom shares an electron with
another atom.
Which item is an atom? - answer nitrogen
Which item would be classified as biotic? - answer fungus
2
