Biodiversity
They are the non-living physical components of an ecosystem.
What are abiotic factors?
Most food chains begin with this trophic level.
What is a producer?
These bonds hold DNA strands together.
What are hydrogen bonds?
This process separates DNA fragments on the basis of size.
What is gel electrophoresis?
This pattern of evolution occurs when a lineage splits and evolves independently due to different selection pressures.
What is divergent evolution?
It is the number of species present in a particular area.
What is species richness?
These processes provide most of the energy needed for life processes on Earth.
What are photosynthesis and cellular respiration?
The sugar which links phosphate molecules in DNA.
What is deoxyribose?
This process was used in the diagnosis of Covid 19
What is PCR?
Dolphins and sharks are an example of this evolution pattern.
What is convergent evolution?
It is between Kingdom and Class.
What is phylum?
In the first step of nitrification, nitrifying bacteria convert ammonia to this compound.
What is nitrite (NO2-)?
This process produces 1 gamete and 1 to 3 polar bodies.
What is oogenesis?
This is produced by combining genetic material from two different sources.
What is recombinant DNA?
This speciation occurs when there is no physical barrier separating gene pools.
What is sympatric speciation?
It is the study of the evolutionary history of organisms or groups of organisms.
What is phylogenetics?
The biomass available to primary consumers.
What is net primary production?
These molecules match amino acids with the appropriate codon qon mRNA.
These enzymes cut a double-stranded DNA molecule at a specific recognition site.
What are restriction enzymes?
This is a type of divergent evolution in which a single lineage diversifies rapidly to produce a large number of species occupying new niches.
What is adaptive radiation?
It is an interaction whereby one species harms another species, but does not obtain any benefit from the interaction.
What is amensalism?
This is an intermediate stage in ecological succession.
What is a sere?
This process stops the binding of transcription factors so that genes cannot be transcribed.
What is methylation?
Under the right conditions, bacteria will take up a plasmid from solution by this process.
What is bacterial transformation?
This mechanism of reproductive isolation occurs before fertilisation can take place.
What is prezygotic isolation?