{"content":{"sharePage":{"page":0,"digests":[{"id":"41502863","dateCreated":"1313727895","smartDate":"Aug 18, 2011","userCreated":{"username":"MaddieBawden","url":"https:\/\/www.wikispaces.com\/user\/view\/MaddieBawden","imageUrl":"https:\/\/ssl.wikicdn.com\/i\/user_none_lg.jpg"},"monitored":false,"locked":false,"links":{"self":"https:\/\/biologyunit2-tsc.wikispaces.com\/share\/view\/41502863"},"dateDigested":1531983327,"startDate":null,"sharedType":"discussion","title":"Question 5","description":"One very unusual group of bony fish is known as the surfperches. More than 20 different species are found mainly in seas off the west coast of North America. In contrast to almost all other species of marine bony fish, surfperches give birth to miniture baby fish and gaurd their young
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\nA. What scientific term can be applied to this mode of offspring production in surfperches?
\n
\nDemersal Spawners
\n
\nB. Identify the scientific term that applies to the usual mode of offspring production in bony fish.
\n
\nOviparity
\n
\nC. Would you expect female serfperches to release more or less eggs in each breeding season compared with fish that have demersal spawning? Explain?
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\nI would expect these fish to produce fewer and larger eggs, because these fish have to look after and gaurd their offspring.","replyPages":[{"page":0,"digests":[{"id":"41654011","body":"good answer. well done, I have nothing to add","dateCreated":"1314257779","smartDate":"Aug 25, 2011","userCreated":{"username":"Angela_Schneider","url":"https:\/\/www.wikispaces.com\/user\/view\/Angela_Schneider","imageUrl":"https:\/\/www.wikispaces.com\/user\/pic\/1311637336\/Angela_Schneider-lg.jpg"}}],"more":0}]},{"id":"41393957","dateCreated":"1313366483","smartDate":"Aug 14, 2011","userCreated":{"username":"TSCTUR0009","url":"https:\/\/www.wikispaces.com\/user\/view\/TSCTUR0009","imageUrl":"https:\/\/ssl.wikicdn.com\/i\/user_none_lg.jpg"},"monitored":false,"locked":false,"links":{"self":"https:\/\/biologyunit2-tsc.wikispaces.com\/share\/view\/41393957"},"dateDigested":1531983327,"startDate":null,"sharedType":"discussion","title":"Question 12","description":"Some flowering plants that live in aquatic habitats are permanently submerged below the water, such as the water thyme (Hydrilla Verticillata)
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\nA.Identify one major challenge regarding pollination in plants living in a terrestrial habitat?
\n
\nB. Identify a possible strategy for pollination in these fully submerged plants. use your imagination,since your are asked to produce a possible, not the correct answer?","replyPages":[{"page":0,"digests":[{"id":"41394173","body":"A. Identify one major challenge regarding pollination in these species as compared with pollination in plants living in a terrestrial habitat?*
\none major challenge would be that a lot of terresstrial pollination occurs through sources such as the wind or animal vectors that carry their pollen from flower to flower. plants submerged in water do not have access to either of these things.
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\nB. Water plants can release their pollen into the water and the currents act as a vector such as the wind does for a terrestrial plant. another way is that the plant may have a flower that blooms above the surface to send and collect pollen through factors like the wind and animal vectors.","dateCreated":"1313367155","smartDate":"Aug 14, 2011","userCreated":{"username":"TSCTUR0009","url":"https:\/\/www.wikispaces.com\/user\/view\/TSCTUR0009","imageUrl":"https:\/\/ssl.wikicdn.com\/i\/user_none_lg.jpg"}}],"more":0}]},{"id":"41185549","dateCreated":"1312371508","smartDate":"Aug 3, 2011","userCreated":{"username":"sti0003","url":"https:\/\/www.wikispaces.com\/user\/view\/sti0003","imageUrl":"https:\/\/www.wikispaces.com\/user\/pic\/1311651410\/sti0003-lg.jpg"},"monitored":false,"locked":false,"links":{"self":"https:\/\/biologyunit2-tsc.wikispaces.com\/share\/view\/41185549"},"dateDigested":1531983327,"startDate":null,"sharedType":"discussion","title":"Question 7","description":"a)Female
\nb)A female will call more frequently because they feel more threatened than the male.
\nc) Females who are reproductive but do not have any kin are more likely to call when an aerial predator is aproaching than any other female.
\nd)Reproductive females who are a mother or who have descendants or nondescendants are more likely to call out for a ground predator than other females.
\ne)Females who are a mother or who have descendants or nondescendants call out for ground predators more than other females because they are afraid for their young and ground predators are more threatening.","replyPages":[{"page":0,"digests":[],"more":0}]},{"id":"41180881","dateCreated":"1312345948","smartDate":"Aug 2, 2011","userCreated":{"username":"MaddieBawden","url":"https:\/\/www.wikispaces.com\/user\/view\/MaddieBawden","imageUrl":"https:\/\/ssl.wikicdn.com\/i\/user_none_lg.jpg"},"monitored":false,"locked":false,"links":{"self":"https:\/\/biologyunit2-tsc.wikispaces.com\/share\/view\/41180881"},"dateDigested":1531983327,"startDate":null,"sharedType":"discussion","title":"Question 4","description":"What is the general type of behaviour in each of the situations below? What is the stimulus in each case that led to the behaviour?","replyPages":[{"page":0,"digests":[{"id":"41181225","body":"A. A cat arches its back, with its tail and hair erect.
\nType of behaviour- Aggressive
\nStimulus- A Threat
\n
\nB. As a female bird approaches, a male lyrebird dances and sings on his mound with his tail well displayed over his head
\n
\nBehaviour- attracting a mate
\nstimulus- A female
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\nC. Thousands of termites build a large nest
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\nBehaviour- Building a nest
\nStimulus- Needs a nest
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\nD. An old mirror stands against an outside wall of a building. A pair of birds, one male, one female, peck among the nearby grass and come close to the mirror. The male sees himself in the mirror, jumps up fluttering his wings and pecks at his own image in the mirror. He repeats the action several times.
\n
\nBehaviour- Aggressive
\nStimulus- Another male","dateCreated":"1312347665","smartDate":"Aug 2, 2011","userCreated":{"username":"MaddieBawden","url":"https:\/\/www.wikispaces.com\/user\/view\/MaddieBawden","imageUrl":"https:\/\/ssl.wikicdn.com\/i\/user_none_lg.jpg"}},{"id":"41288347","body":"b) we would call 'courtship behaviour'
\n
\nc) you could also consider this a social behaviour and in termites (and ants and bees) there are usually pheremones involved.
\nPheremones are any sort of smelly chemical signal and they are really important in insects.
\n
\n
\nsee below.
\n(as to what causes them to start rolling up mud balls in the first place- beats me)
\n
\nThe production of behaviour that is a direct consequence of the effects produced in the local environment by previous behaviour. For example, when termites (Isoptera) start to build a nest, they modify their local environment by making little mud balls, each of which is impregnated by a pheromone. Initially the termites deposit their mud balls at random. The probability of depositing one on top of another increases as the sensed concentration of pheromone increases. After the first few random placements, the other termites tend to deposit their mud balls in the same place, so that small columns are formed. The pheromone from neighbouring columns causes the tops of the mud columns to lean towards neighbouring columns, Eventually the tops meet, forming arches, the basic building units of the nest. As other stigmergic rules come into play, involving water vapour, carbon dioxide concentration, and the presence of the queen, the whole complex nest structure is produced. This may include the royal cell, brood nurseries, air conditioning, larders, and communication tunnels.
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\nThe essence of stigmergy is that simple behavioural rules change the environment in such a way that new rules are triggered by the new environmental stimuli. Thus the behavioural repertoire becomes self-organizing. This is the principle behind much of the social behaviour of ants (Hymenoptera) and termites.
\n
\n
\n
\nRead more: stigmergy - Termites, Columns, Mud, Rules, Environment, and Nest
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\nhttp:\/\/animals.jrank.org\/pages\/5426\/stigmergy.html#ixzz1UWvwmKVa<\/a>","dateCreated":"1312889389","smartDate":"Aug 9, 2011","userCreated":{"username":"Angela_Schneider","url":"https:\/\/www.wikispaces.com\/user\/view\/Angela_Schneider","imageUrl":"https:\/\/www.wikispaces.com\/user\/pic\/1311637336\/Angela_Schneider-lg.jpg"}}],"more":0}]}],"more":false},"comments":[]},"http":{"code":200,"status":"OK"},"redirectUrl":null,"javascript":null,"notices":{"warning":[],"error":[],"info":[],"success":[]}}