Term
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Definition
| Feed via filtering large quantities of water or air (sponges, spiders) |
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Term
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Definition
| process large amounts of dirt (worms) |
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Term
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Definition
| derive nutrition from a host without killing it. |
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Term
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Definition
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Term
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Definition
| kills and eats other animals. |
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Term
| Mammalian jaw and dental structure as related to feeding mode |
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Definition
# of teeth, shape of teeth, placement of teeth. EG: fox has large incisors and canines for grabbing, tearing, and ripping. Elongated jaw. Premolars and molars are used for bones.
Woodchuck has large, flat incisors and pronounced premolars and molars.
Deer: large, flat molars and premolars. |
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Term
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Definition
| Released by stomach cells when they detect food in the lower stomach. It increases stomach motility and acid production. |
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Term
| Asexual reproduction types |
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Definition
Binary fission, mitosis, and cell division.
Multicellular animals use budding, gemmulation (sponges only), fragmentation. All use haploid cell division. |
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Term
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Definition
| 3 Major types: biparental (bisexual), hermaphroditic, and parthenogenetic. Each uses diploid cells. |
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Term
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Definition
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Term
| hermaphroditic (and types) |
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Definition
Multisex
Simultaneous hermaphrodites (both at once, can be selfing or nonselfing)
2. Sequential (changes over time, often found in fish, etc). Protandrous starts as male, protogynous starts as female. |
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Term
| parthenogenetic reproduction |
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Definition
Virgin birth. Development of offspring from unfertilized eggs.
Types: ameiotic: female that produces egg that is diploid and grows up into new offspring. No meiosis. More a type of asexual reproduction
Meiotic: Egg is produced, either change in meiosis to prevent egg becoming haploid OR two haploid eggs combine to become diploid |
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Term
| When is sexual or asexual reproduction advantageous? What are the costs to each? |
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Definition
| asexual very good if relatively stable environment. Sexual is best against a hostile environment (viruses, etc) |
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Term
| Sex determination in reptiles |
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Definition
many turtles: low incubation temperature = males
many lizards and alligators: high incubation temperature = males
leopard geckos, snapping turtles, crocodiles: moderate temperatures = males |
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Term
| gametogenesis in human males and females. |
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Definition
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Term
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Definition
| Released when food goes from stomach to duodenum. It counteracts stomach motility, increases bicarbonate production in pancreas (used to neutralize acid), reduces bile secretion in the liver. |
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Term
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Definition
| Released when fatty food or amino acids are in duodenum. It increases bile secretion, enzyme flow in pancreas, causes feelings of satiety in the brain |
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