Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
ib 109 (final) 6
Insects and people
| Question | Answer |
|---|---|
| what percentage of insects are herbivores? | 25-35% |
| What order of insects is exclusively phytophagous? | Phasmida (walking sticks) |
| two problems with plant proteins | low in content and not the same as animal proteins |
| The function of allelochemicals (secondary metabolites) in plants is: | to mediate ecological interactions with other organisms |
| Insects that suck plant sap can be found primarily in the order | Hemiptera |
| population | members of the same species living in the same space at the same time |
| capacity | the number of individuals that a particular habitat can sustain given its resources |
| The Latin word “gregaria” means “herd” or “flock.” Why is Schistocerca gregaria so named? | aggregate in large populations, flock together when migratory |
| Identify two characteristics that distinguish S. gregaria var. gregaria from S. gregaria var. solitaria: | soliaria- yellow, sexually mature as adults, low wing length, gregaria- pink, sexually immature, high wing length |
| What chemical cues are known to promote the appearance of gregarious locusts? | frass pheromones (more frass, greater signal) |
| What is the function of the locust descending contralateral movement detectors (DCMDs)? | they detect impending collisions |
| The area constituting the usual habitat of S. gregaria is called the | recession area |
| Where is the Intertropical Convergence Zone and what does it have to do with locusts? | where trade winds converge and rising air cools adiabatically |
| Is there a biological explanation for the apparent success of insect exorcisms? If so, what is it? | populations crashed (density dependent factors), natural mortality, or went dormant |
| Where was the Anti-Locust Research Center founded? | London |
| What is Metarhizium anisopliae var acridum (Maa)? | fungus used in biocontrol of locust |
| EMPRES stands for | Emergency Prevention System |
| Define "sericulture" | The cultivation of Bombyx mori for the production of silk. |
| Silk consists of two materials | proteinaceous inner layer called fibroin and a gummy outer covering called sericin |
| The multicaulis craze of 1824 dealt with | . a new foodplant for silkworms |
| Louis Pasteur identified the causative agent of pebrine, a microbial disease of silkworms. What microbiological work is he better known for? | Pasteurization and the Germ Theory of Disease |
| What did Herman Hollerith invent and how was his invention related to silk? | Tabulating machine based on the Jacquard loom for weaving silk |
| What U.S. city was known as "Silk City" until labor problems led to the breakup of the mills? | Paterson City, NJ |
| How is Bombyx mandarina related to Bombyx mori? | mandarina is ancestral to mori |
| Aside from caterpillars, what other arthropods are used as commercial sources of silk? | Spiders (black widows) |
| When was the Bombyx mori genome sequenced? | 2004 |
Created by:
cruz8
Popular Biology sets