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Physiological Eco.
Water
| Question | Answer |
|---|---|
| Temperature and water relations interact | higher temps > higher evaporation |
| Some organisms do what with water | Use it for evaporative cooling |
| Example of water gain and loss | Banner-tail kangaroo rat |
| Exhalation | Refer to notes |
| Inhalation | Refer to notes |
| Adaptations of a Kangaroo Rats to Desert Environments | Refer to Notes - no sweat glands - practice coprophagy - forage at night when the humidity is higher |
| Name 3 Camel adaptations for desert life | - nasal secretions dry - absorb water - fur for insulation - dry feces - thick rubbery lips - able to survive water loss of 20% of body weight! - low urine flow - body temp variable - 7 C |
| Namib Desert beetles- adaptations | - one stands upside down - one digs trenches |
| Upside down Namib desert beetle tip their abdomen upward to... | Collect the moisture of the fog as it condenses on abdomen and the fog-laden winds blow across dune crests |
| What do the grooves on the abdomen do for the beetle? | Collect condensed water and direct it towards the head, around the mouth for the beetle to drink |
| Where does the beetle collect 80% of its water? | By the condensed fog |
| Main avenue of water loss | Evaporation (can lose water from feces and urine) |
| What contributes a moderate amount to water gain?- desert beetle | Food |
| Secretion- desert beetle | Results in little water loss |
| Kangaroo can go without drinking and obtain... | Water from its food |
| On dry sites of plants | they grow a dense network of deeply penetrating roots |
| On moist sites of plants | sparse a network of shallow roots |
| Name 4 plant adaptations to dry environment | - deep or spreading roots - thick leaves - hairy leaves - lose leaves in dry season - store water in steams (cactus) - biochemical adaptations (photosynthsis) |
| Why do some species never have to drink water? | They have highly efficient kidneys to get enough from food and splitting of food chemicals |
| Highly efficient kidneys produces | High concentrated urine |
| Main avenue of acquisition- animals | Food an drinking |
| How does plants lose water? | Transpiration (evaporation and diffusion of water) |
| Plants lose fluids in... | Secretion (nectar) |
| What increases evaporate water loss? | Wind |
| Main avenue of acquisition- plants | Soil through the roots |
| Where does plants absorb water? | Moist air (through the leaves) |
| C6 H12 06 + O2 | Glucose and Oxygen |
| CO2 - H20 | Breathe out - get water |
Created by:
animalsavior
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