Solve the Problem A) 10
B) 4
C) 2
D) 1

question 362

Multiple Choice

Solve the problem.
- $\text { Find the maximum value of } f ( x , y , z , w ) = x + y + z + w \text { subject to } x ^ { 2 } + y ^ { 2 } + z ^ { 2 } + w ^ { 2 } = 1 \text {. }$

• A) 10
• B) 4
• C) 2
• D) 1

Describe the evolutionary origins and significance of endothermy, hair, and feathers among amniotes.

Construct and interpret phylogenetic trees showing relationships among vertebrates and their evolutionary traits.

Understand the structure, function, and evolutionary significance of the echinoderm water vascular system.

Grasp the concept of endothermy in extinct species through fossil and molecular evidence.

---

Definitions:

Interneurons

Structures found only in the central nervous system that link sensory and motor neurons together.

Efferent nerves

Nerves that carry signals away from the central nervous system to effectors like muscles and glands, facilitating action and response.

Afferent nerves

Nerves that carry sensory signals from the body's periphery toward the central nervous system.

Synaptic knob

The bulbous end of a nerve fiber where neurotransmitters are stored before being released into the synaptic cleft to transmit nerve impulses.