Which one of the following can cause the interior of the neuron to have a momentary positive charge?
(a) opening of potassium leak channels
(b) activity of the na/k atpase
(c) opening of voltage gated sodium channels
(d) opening of voltage gated potassium channels

(c) Opening of voltage gated sodium channels

Explanation:

The firing of action potential leads to a quick opening of voltage-gated Na+ channels and slow opening of K+ channels. The opened voltage-gated Na+ channels allow the Na+ to enter the neuron and cause depolarization.

The interior of the cell becomes positive quickly. As the rising potential passes 0 mV, the voltage-gated Na+ channels are inactivated and the entry of the Na+ stops while the K+ channels are fully opened to repolarize the membrane again.

cuz they cant breath

explanation:

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.