BIO220H1 : BIO220 1st Term Test Study Sheet- includes textbook readings mixed in there

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12 Feb 2012

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BIO220H1 Full Course Notes

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revealed by reciprocal transplant experiments y switching individuals between two localities: daphnia have a helmet when there are predators. P a g e | 2 y reaction norm: observed relationship between phenotype of individual and environment y cactus wrens: nests must be properly oriented for season. warm weather entrance facing wind y acclimatization: shift in individual s range of physiological tolerances, plants acclimatized to different temperatures in greenhouse and then tested over wide. max photosynthetic rate reaches same level in platnts acclimatized in 20 and 45 degrees. plants acclimatized to 20 degrees do worse at 45 degrees compare to plants y developmental responses acclimatized to 45 degrees: coloured grasshopper g. africanus develop colour to match its surrounding. males other than a female s mate may father some of her offspring. strong selection for mate guarding y gynodioecy: hermaphrodites and females coexist in same population: cytoplasmic genes are transmitted only through female gametes.

Related Questions

Hi, these are questions that are need to be prepared forin-class discussion in biological ecology.

1. How can you distinguish genetic from environmentaleffects?

2. How can you quantify phenotypic plasticity?

3. How can you detect genotype x environment interaction?

If you could briefly answer these questions, it would be veryhelpful.

Thank you.

plumsheep398

When considering phenotypic plasticity, is it possible for different environmental cues to produce the same favorable phenotype? If not, explainâ¦If so, explain and give at least one example.

1. Late stage succession communities typically: a) contain more equilibrial than opportunistic species b) are more diverse than disturbed communities c) are more diverse than early stage succession commmunities d) contain more opportunistic species than equilibrial species e) suffer higher rates of disturbance

2. Phenotypic plasticity is when: a) Organisms adapt their genotype to the local environment b) Individuals with different phenotypes show plasticity in their size c) Organisms with different genotype express different phenotypes in the same environment d) Plasticity in the environment causes different genotypes to survive leading to different phenotypes e) Organisms express different phenotypes depending on the local environment but have the same genotype

3. Terrestrial areas that are saturated with water, either permanently or seasonally, are typically known as what type of ecosystem. f) Grasslands g) Heathlands h) Litholands i) Wetlands j) Littoral

4. Briefly explain two ways that excess climate gas emissions are changing the worldâs physical environment

BIO220H1 : BIO220 1st Term Test Study Sheet- includes textbook readings mixed in there

BIO220H1 Full Course Notes

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