Answer:
I believe the answer is A
Explanation:
I think it is A because the original function of the spinal cord is to complex organization of nerve cells responsible for movement and sensation. It carries signals between the brain and the rest of the body.
Answer:
An organism interacts with both the living and nonliving parts of its habitat.
Explanation:
Biotic FactorsThe parts of a habitat that are living, or once living, and that interact with an organism are called biotic factors.
The path of movement of electrical impulse starts from the dendrites. Then it passes through cell body, axon, axon terminal and to the dendrites of another neuron through the synapse. Myelin sheath acts as insulator, Nodes of ranvier are small gaps in axons which facilitate the impulse transfer.
the very basic properties of water
conducts heat
neutral pH
high surface tension
high specific heat
good solvent
how does this help a polar bear, some of it is a stretch but possible benefits
pH - good drinking water, good for marine ecosystem for food
high specific heat - can absorb lots of heat before the temperature rises, polar bears exist naturally in cold environments. (ice) - maybe can tie this in with the natural hibernation cycle
high surface tension - I'm assuming the polar bear walks on the ice at times to get fish
as a good solvent - its probably good that most things dissolve in water, otherwise we would have a lot of floating gunk on top of the water
outside of this, can't give you much more. it has been noted in Shishmaref Village that the ice caps melting is leading to a lack of water in higher mountain areas and polar bears are coming down from the mountain ice cap areas to find food and water
