You Notice That Water Is Running Off the Feathers of a Bird

question 46

Multiple Choice

You notice that water is running off the feathers of a bird in the rain.The reason is probably that the bird has coated the feathers with ________,which keeps the water out of them.

• A)proteins
• B)polysaccharides
• C)lipids
• D)nucleic acids

---

Definitions:

Neural Connections

The synapses and pathways through which neurons communicate with each other within the brain and nervous system.

Dendrites

Treelike fibers projecting from a neuron, which receive information and orient it toward the neuron’s cell body.

Synaptic Connections

These are the points at which nerve cells (neurons) connect to communicate with each other, transmitting signals through chemical messengers.

Anatomical Change

Alterations or modifications in the structure of body parts, often due to development, aging, or disease.