water - loons and seals

Question 1

name 3 properties ringed seals have that are good for them on water but bad on ice:

Answer 1

1. hydrodynamic shape - minimizes water drag - can glide on water.
2. powerful flippers - generate propulsion - they can push forward
3. low density blubber - increases buoyancy on water.

Question 2

name the physical properties of water that help ringed seals.

Answer 2

1. buoyancy: they have low density blubber to increase their buoyancy.
   2.Viscosity: they have a streamlined shape to reduce drag against viscosity/how thick the water is.
2. thermal conductivity: they have insulating blubber (shit that can keep the heat inside) to reduce heat loss.

Question 3

name one property that helps seals on air

Answer 3

specific heat capacity: seal pups survive in lairs insulated by trapped air.

Question 4

what are advantages to black throated loons that help then survive

Answer 4

1; hydrodynamic - good for swimming in thick water - viscosity.
2; aerodynamic - good to generate lift in less buoyant air.

Question 5

what do loons do to retain body heat ?

Answer 5

they use insulating air and down feathers with low thermal conductivity.
they have hydrophobic feathers that prevent water infiltration - when water goes into soil.