Describe the effects of untreated sewage and excess fertiliser on aquatic ecosystems
Describe the effects of untreated sewage and excess fertiliser on aquatic ecosystems
1 AnswerQuestions and Answers
1 Answer Describe the advantages and disadvantages of intensive livestock production
Describe the advantages and disadvantages of intensive livestock production
1 Answer Describe the advantages and disadvantages of large-scale monocultures of crop plants
Describe the advantages and disadvantages of large-scale monocultures of crop plants
1 Answer Describe how humans have increased food production, limited to: (a) agricultural machinery to use larger areas of land and improve efficiency (b) chemical fertilisers to improve yields (c) insecticides to improve quality and yield (d) herbicides to reduce competition with weeds (e) selective breeding to improve production by crop plants and livestock
Describe how humans have increased food production, limited to: (a) agricultural machinery to use larger areas of land and improve efficiency (b) chemical fertilisers to improve yields (c) insecticides to improve quality and yield (d) herbicides to reduce competition with weeds (e) selective breeding to improve production by crop plants and livestock
1 Answer Explain the factors that lead to each phase in the sigmoid curve of population growth, making reference, where appropriate, to the role of limiting factors
Explain the factors that lead to each phase in the sigmoid curve of population growth, making reference, where appropriate, to the role of limiting factors
1 Answer Interpret graphs and diagrams of population growth
Interpret graphs and diagrams of population growth
1 Answer Identify the lag, exponential (log), stationary and death phases in the sigmoid curve of population growth for a population growing in an environment with limited resources
Identify the lag, exponential (log), stationary and death phases in the sigmoid curve of population growth for a population growing in an environment with limited resources
1 Answer Describe an ecosystem as a unit containing the community of organisms and their environment, interacting together
Describe an ecosystem as a unit containing the community of organisms and their environment, interacting together
1 Answer Describe a community as all of the populations of different species in an ecosystem
Describe a community as all of the populations of different species in an ecosystem
1 Answer Describe a population as a group of organisms of one species, living in the same area, at the same time
Describe a population as a group of organisms of one species, living in the same area, at the same time
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Total Questions 3514
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drifting movement in fishes during migration
Drifting movement is a significant aspect of fish migration, particularly
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classification of fishes based on migration in dams in india
Fish migration is a critical aspect of aquatic ecosystems, significantly
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Do fish migrate in the winter?
Fish exhibit diverse migratory behaviors during winter, influenced by species-specific
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Topoisomerase: – A. Separates the DNA strands at the origin – B. Keeps the single-stranded DNA regions from coming back together – C. Re-coils the DNA into a helix after replication is complete – D. Breaks DNA backbone to remove tension produced by the helicase – E. Breaks hydrogen bonds between DNA and the RNA primers
D. Topoisomerase breaks the DNA backbone to relieve supercoiling tension
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What end overhangs?
The 3' end of the telomere strand typically has a
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What kind of cells need cell replication of their telomeres?
Actively dividing cells, such as stem cells, germ cells, and
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What percent of all human cancers have high levels of telomerase?
Around 85–90% of human cancers have high telomerase activity. This
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