5 stages of development in plants

SPROUT

Each seed contains a small parcel of nutrients that is all they need to germinate and begin growing their first pair of leaves.

SEEDLING

As plants' roots develop and spread, a boost of quickly absorbed, well-balanced nutrients fuels the rapid growth from spindly seedling to healthy plant.

VEGETATIVE

Nitrogen is a key component of chlorophyll, the green pigment in plants, so it's the critical nutrient when their energy is focused on growing stalks and foliage.

BUDDING

Phosphorus is in extra high demand at the start of a plant's' reproductive cycle, the transition from growing leaves to forming buds.

FLOWERING

Potassium plays a primary role in producing and transporting the sugars and starches plants use up as they develop healthy flowers and fruit.

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation: