Answer:
What does it mean for a cell to have an optimal pH range?
it will only function properly at a neutral pH of 7.
Explanation:
Every cells performs best at optimum pH which is neutrality. Acidity or alkalinity affect cell's performance which calls for optimum range in order to get the best performance
Answer:
A) receptor, sensory neuron, interneuron, motor neuron, effector
Explanation:
In a reflex arc, the receptors present in the skin receive stimulus and generate afferent impulse. The sensory neuron transmits the impulse to the interneuron. Interneuron is present in the spinal cord and activates it. The interneuron then sends back the impulse through the motor neurons to effectors whcih are present in the muscles for the response.
I’m pretty sure it’s in the telophase
Answer:the possession of feathers
Explanation:birds are warm blooded animals , that possess feathers.these feathers cover their bodies and used for flight and warmth.their forelimbs are modified into wings,which fold into a Z shape at rest.feathers grow from the skin follicles and are replaced by scales on their legs.they possess oil gland to dress the feathers.
Other features of birds include
1) beaks with no teeth
2) fully ossified bones with air cavities
3)females with left ovary and oviducts only