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28 Sep 2019
1. Biomes - Match the biome with itsdescription.
Potential Matches: 1 : Coniferous forest 2 : Temperate forest 3 : Tundra 4 : Tropical rainforest 5 : Grassland 6 : Wetland 7 : Estuary 8 : Desert
Answer : Caribou, musk ox and lemmingsare common, along with permafrost, mosses and lichens. : May be hot or cold, but alwaysvery dry. : Long snowy winters and shortsummers allow for cone-bearing evergreen trees to flourish. : Spectacular displays of colorin the fall occur before deciduous trees drop their leaves. : Plentiful rainfall and warmyear round temperatures produce a habitat home to the greatestdiversity of plants and animals. : Mostly treeless expanse knownfor large herds of grazing mammals. : Home to migrating waterfowl,this type of biome is important in reducing flooding and improvingwater quality. : Transition area between a riverand an ocean with salinity ranging from nearly that of freshwaterto that of the oceans.
2 Genetics - Match the terms with the mostsuitable description.
(Points : 16)
Potential Matches: 1 : recessive 2 : sex-linked 3 : pleiotropy 4 : carrier 5 : dominant 6 : phenotype 7 : polygenic 8 : genotype
Answer : An allele that can be expressedby an individual that is heterozygous. : The genetic make-up of anindividual. : The control of more than onephenotypic character by a single gene. : The visible physical expressionof an individual's genetic make-up. : An allele that can only beexpressed when an individual is homozygous. : A trait controlled by more thanjust a single pair of alleles. : A trait controlled by a genelocated on either the X or Y chromosomes. : An individual carrying only oneallele of a recessively inherited disorder.
3. Evolution - Match the terms with the mostsuitable description.
(Points : 16)
Potential Matches: 1 : hybrid sterility 2 : habitat isolation 3 : hybrid inviability 4 : geographic isolation 5 : mechanical isolation 6 : gamete mortality 7 : temporal isolation 8 : behavioral isolation
Answer : Because of a single mutation ina developmental gene, two closely related species of wasps have aslightly different anatomy of their sex organs making interbreedingimpossible. : Two species of snakes aremorphologically very similar but breed during differentseasons. : Two similar species oftreehoppers live and feed on two separate species of trees. : Males of two species of birdsuse different mating dances to attract their mates. : Due to a geographic barrier, asmall portion of a population remains isolated and its gene pooldiverges from that of the original population. : Sperm from a male of onespecies dies in the reproductive tract of the female of a differentspecies before fertilization can occur : Mules are a cross between adonkey and a horse; they are viable, healthy animals, but theycannot reproduce. : A cross between two species ofsalamanders yields offspring, but they do not survive long enoughto reproduce
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Sixta KovacekLv2
28 Sep 2019