What is a detailed and complex analysis of the feeding relationships in a commun
ID: 102044 • Letter: W
Question
What is a detailed and complex analysis of the feeding relationships in a community?
A.
food web
B.
trophic levels
C.
symbiosis
D.
food chain
E.
keystone analysis
Why are ice cores useful in tracking carbon dioxide levels?
A.
They contain sediment from volcanoes.
B.
They are easy to obtain.
C.
Air bubbles in the ice contain gases that can be measured.
D.
Water can be analyzed for carbon dioxide.
E.
Ratios of isotopes can be compared.
Which is TRUE of mitochondrial DNA?
A.
Mitochondrial DNA is found in the sperm's tail.
B.
Mitochondrial DNA from the sperm is not found in the fertilized egg.
C.
Mitochondrial DNA can be traced for many generations.
D.
A son cannot pass his mother's mitochondrial DNA to his progeny.
E.
All of the above.
All of the following statements are true, EXCEPT
A.
race is a social, rather than biological, category.
B.
some people may identify themselves as members of a race based on cultural traditions rather than on physical traits.
C.
children whose parents are different races tend to have more health problems than children whose parents are of the same race.
D.
groups of people sharing similar physical characteristics likely have more ancestors in common.
E.
all humans, regardless of race, are members of just one species.
Which of the following lists members of a food chain in order from bottom to top?
A.
grassgrasshoppersalmonbear
B.
bearsalmongrassgrasshopper
C.
salmonbeargrassgrasshopper
D.
grasshoppersalmongrassbear
E.
grasssalmongrasshopperbear
Race, if defined by a person's skin tone, provides information about
A.
their ancestry.
B.
their financial position.
C.
their social status.
D.
their religion.
E.
None of the above.
Which of the following conditions indicates that a population is living at its carrying capacity?
A.
birth rate > death rate; immigration > emigration
B.
birth rate > death rate; emigration > immigration
C.
birth rate > death rate; immigration = emigration
D.
birth rate = death rate; immigration > emigration
E.
birth rate = death rate; immigration = emigration
Which areas had higher than global averages of temperature increase?
A.
Africa, Arctic, and Antarctica
B.
Europe, Arctic, and Eurasia
C.
Arctic, North America, and Antarctica
D.
South America, Africa, and Arctic
E.
Arctic, Antarctica, and Eurasia
Melanocytes are located
A.
in the uppermost layer of the epidermis.
B.
in the uppermost layer of the dermis.
C.
in the subcutaneous layer.
D.
in the basal layer of the dermis.
E.
in the basal layer of the epidermis.
A.
food web
B.
trophic levels
C.
symbiosis
D.
food chain
E.
keystone analysis
Why are ice cores useful in tracking carbon dioxide levels?
A.
They contain sediment from volcanoes.
B.
They are easy to obtain.
C.
Air bubbles in the ice contain gases that can be measured.
D.
Water can be analyzed for carbon dioxide.
E.
Ratios of isotopes can be compared.
Which is TRUE of mitochondrial DNA?
A.
Mitochondrial DNA is found in the sperm's tail.
B.
Mitochondrial DNA from the sperm is not found in the fertilized egg.
C.
Mitochondrial DNA can be traced for many generations.
D.
A son cannot pass his mother's mitochondrial DNA to his progeny.
E.
All of the above.
All of the following statements are true, EXCEPT
A.
race is a social, rather than biological, category.
B.
some people may identify themselves as members of a race based on cultural traditions rather than on physical traits.
C.
children whose parents are different races tend to have more health problems than children whose parents are of the same race.
D.
groups of people sharing similar physical characteristics likely have more ancestors in common.
E.
all humans, regardless of race, are members of just one species.
Which of the following lists members of a food chain in order from bottom to top?
A.
grassgrasshoppersalmonbear
B.
bearsalmongrassgrasshopper
C.
salmonbeargrassgrasshopper
D.
grasshoppersalmongrassbear
E.
grasssalmongrasshopperbear
Explanation / Answer
1) Option 'A' is the correct answer. Detailed and complex and complex analysis of the feeding relationships in a community is 'food web'.
2) Option 'E' is the correct answer because 'ice cores' are used in tracing carbondioxide levels by comparing the ratios of iotopes.
3) Option 'C' is correct as mitochondrial DNA is traced for many generations.
4) Option 'C' is the correct one because children with parents of different races will not get more health problems than the children with parents of same race.
5) Option 'A' is correct. grass - grasshopper - salmon - bear
6) Option 'A' is correct because race provides an information about their ancestry.
7) Option 'E' is correct because net growth should be zero
8) No idea.....
9) Option 'E' is the correct answer. Melanocytes are located
in the basal layer of epidermis.
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